578 lines
15 KiB
Markdown
578 lines
15 KiB
Markdown
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## CSS3 常见边框汇总
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```html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>CSS3 边框</title>
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<style>
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body, ul, li, dl, dt, dd, h1, h2, h3, h4, h5 {
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margin: 0;
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padding: 0;
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}
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body {
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background-color: #F7F7F7;
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}
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.wrapper {
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width: 1000px;
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margin: 0 auto;
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padding: 20px;
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box-sizing: border-box;
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}
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header {
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padding: 20px 0;
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margin-bottom: 20px;
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text-align: center;
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}
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header h3 {
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line-height: 1;
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font-weight: normal;
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font-size: 28px;
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}
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.main {
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/*overflow: hidden;*/
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}
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.main:after {
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content: '';
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clear: both;
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display: block;
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}
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.main .item {
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width: 210px;
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height: 210px;
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margin: 0 30px 30px 0;
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display: flex;
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position: relative;
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background-color: #FFF;
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float: left;
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box-shadow: 2px 2px 5px #CCC;
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}
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.main .item:after {
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content: attr(data-brief);
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display: block;
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width: 100%;
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height: 100%;
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text-align: center;
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line-height: 210px;
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position: absolute;
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top: 0;
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left: 0;
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color: #FFF;
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font-family: '微软雅黑';
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font-size: 18px;
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background-color: rgba(170, 170, 170, 0);
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z-index: -1;
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transition: all 0.3s ease-in;
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}
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.main .item:hover:after {
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background-color: rgba(170, 170, 170, 0.6);
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z-index: 100;
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}
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.main .item:nth-child(4n) {
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margin-right: 0;
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}
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/*.main .item:nth-last-child(-n+5) {
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margin-bottom: 0;
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}*/
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/* 以上是骨架样式 */
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/* 1、2、3、4 顺时针 */
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.border-radius {
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width: 180px;
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height: 180px;
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margin: auto;
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border: 1px solid red;
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/*border-radius: 50% 30% 20%;*/
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}
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.square {
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border-radius: 0;
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}
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/*拱形*/
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.item:nth-child(1) .border-radius {
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border-radius: 90px;
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}
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/*拱形*/
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.item:nth-child(2) .border-radius {
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border-radius: 90px 90px 0 0;
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}
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/*半圆*/
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.item:nth-child(3) .border-radius {
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height: 90px;
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border-radius: 90px 90px 0 0;
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}
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/*左上角*/
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.item:nth-child(4) .border-radius {
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/*height: 90px;*/
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border-radius: 90px 0 0 0;
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}
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/*四分之一圆*/
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.item:nth-child(5) .border-radius {
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width: 90px;
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height: 90px;
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border-radius: 90px 0 0 0;
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}
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/*横着的椭圆*/
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.item:nth-child(6) .border-radius {
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height: 90px;
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/*border-radius: 50%;*/
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border-radius: 90px 90px 90px 90px / 45px 45px 45px 45px;
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/*border-radius: 45px / 90px;*/
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}
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/*竖着的椭圆*/
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.item:nth-child(7) .border-radius {
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width: 90px;
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border-radius: 45px 45px 45px 45px / 90px 90px 90px 90px;
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}
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/*半个横着的椭圆*/
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.item:nth-child(8) .border-radius {
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height: 45px;
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border-radius: 90px 90px 0 0 / 45px 45px 0 0;
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}
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/*半个竖着的椭圆*/
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.item:nth-child(9) .border-radius {
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width: 45px;
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border-radius: 45px 0 0 45px / 90px 0 0 90px;
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}
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/*四分之一竖着的椭圆*/
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.item:nth-child(10) .border-radius {
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width: 45px;
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height: 90px;
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border-radius: 45px 0 0 0 / 90px 0 0 0;
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}
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/*饼环*/
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.item:nth-child(11) .border-radius {
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width: 40px;
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height: 40px;
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border: 70px solid red;
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border-radius: 90px;
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}
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/*圆饼*/
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.item:nth-child(12) .border-radius {
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width: 40px;
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height: 40px;
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border: 70px solid red;
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border-radius: 60px;
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}
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/*左上角圆饼*/
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.item:nth-child(13) .border-radius {
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width: 60px;
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height: 60px;
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border: 60px solid red;
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border-radius: 90px 0 0 0;
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}
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/*对角圆饼*/
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.item:nth-child(14) .border-radius {
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width: 60px;
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height: 60px;
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border: 60px solid red;
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border-radius: 90px 0 90px 0;
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}
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/*四边不同色*/
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.item:nth-child(15) .border-radius {
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width: 0px;
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height: 0px;
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border-width: 90px;
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border-style: solid;
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border-color: red green yellow blue;
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}
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/*右透明色*/
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.item:nth-child(16) .border-radius {
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width: 0px;
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height: 0px;
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border-width: 90px;
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border-style: solid;
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border-color: red green yellow blue;
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border-right-color: transparent;
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}
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/*圆右透明色*/
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.item:nth-child(17) .border-radius {
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width: 0px;
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height: 0px;
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border-width: 90px;
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border-style: solid;
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border-color: red;
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border-right-color: transparent;
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border-radius: 90px;
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}
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/*圆右红透明色*/
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.item:nth-child(18) .border-radius {
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width: 0px;
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height: 0px;
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border-width: 90px;
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border-style: solid;
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border-color: transparent;
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border-right-color: red;
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border-radius: 90px;
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}
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/*阴阳图前世*/
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.item:nth-child(19) .border-radius {
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width: 180px;
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height: 0px;
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border-top-width: 90px;
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border-bottom-width: 90px;
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border-style: solid;
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border-top-color: red;
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border-bottom-color: green;
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/*border-right-color: red;*/
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border-radius: 90px;
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}
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/*阴阳图前世2*/
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.item:nth-child(20) .border-radius {
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width: 180px;
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height: 90px;
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border-bottom-width: 90px;
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border-style: solid;
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border-bottom-color: green;
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background-color: red;
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/*border-right-color: red;*/
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border-radius: 90px;
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}
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/*阴阳图今生*/
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.item:nth-child(21) .border-radius {
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width: 180px;
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height: 90px;
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border-bottom-width: 90px;
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border-style: solid;
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border-bottom-color: green;
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background-color: red;
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border-radius: 90px;
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position: relative;
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}
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.item:nth-child(21) .border-radius::after,
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.item:nth-child(21) .border-radius::before {
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content: '';
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position: absolute;
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top: 50%;
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width: 20px;
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height: 20px;
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/*margin: -10px 0 0 0;*/
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border-width: 35px;
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border-style: solid;
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border-radius: 45px;
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}
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/*左阴阳*/
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.item:nth-child(21) .border-radius::after {
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background-color: red;
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border-color: green;
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}
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/*右阴阳*/
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.item:nth-child(21) .border-radius::before {
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background-color: green;
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border-color: red;
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right: 0;
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}
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/*右阴阳*/
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.item:nth-child(22) .border-radius {
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width: 180px;
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height: 90px;
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border-bottom-width: 90px;
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border-bottom-color: green;
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border-bottom-style: solid;
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background-color: red;
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border-radius: 90px;
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position: relative;
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}
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.item:nth-child(22) .border-radius::after,
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.item:nth-child(22) .border-radius::before {
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content: '';
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position: absolute;
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top: 50%;
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width: 20px;
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height: 20px;
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border-width: 35px;
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border-style: solid;
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border-radius: 45px;
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}
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.item:nth-child(22) .border-radius::before {
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border-color: green;
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background-color: red;
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}
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.item:nth-child(22) .border-radius::after {
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right: 0;
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border-color: red;
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background-color: green;
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}
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/*消息框*/
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.item:nth-child(23) .border-radius {
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width: 160px;
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height: 80px;
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background-color: red;
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border-radius: 6px;
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position: relative;
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}
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.item:nth-child(23) .border-radius::after {
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content: '';
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width: 0;
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height: 0;
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border-width: 10px;
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border-style: solid;
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border-color: transparent;
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border-right-color: red;
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position: absolute;
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top: 16px;
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left: -20px;
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}
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/*奇怪的图形*/
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.item:nth-child(24) .border-radius {
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width: 40px;
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height: 40px;
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border-width: 45px 0 45px 70px;
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border-style: solid;
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border-radius: 0 0 60px 0;
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border-color: red;
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}
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/*奇怪的图形2*/
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.item:nth-child(25) .border-radius {
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width: 100px;
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height: 40px;
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border-width: 45px 20px 45px 70px;
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border-style: solid;
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border-radius: 60px;
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border-color: red;
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}
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/*QQ对话*/
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.item:nth-child(26) .border-radius {
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width: 160px;
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height: 80px;
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background-color: red;
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border-radius: 6px;
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position: relative;
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}
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.item:nth-child(26) .border-radius::after {
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content: '';
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position: absolute;
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top: 0;
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right: -20px;
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width: 30px;
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height: 30px;
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border-width: 0 0 30px 30px;
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border-style: solid;
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border-bottom-color: red;
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border-left-color: transparent;
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border-radius: 0 0 60px 0;
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}
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/*圆角的百分比设置 */
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.item:nth-child(27) .border-radius {
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width: 180px;
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/*height: 180px;*/
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height: 90px;
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border-radius: 50%;
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border-radius: 90px/45px;
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/*百分比是按横竖两个对应的方向的长度进行计算*/
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}
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</style>
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</head>
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<body>
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<div class="wrapper">
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<header>
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<h3>CSS3 边框圆角</h3>
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</header>
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<div class="main">
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<div class="item" data-brief="整圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="拱形">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="半圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="左上角">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="四分之一圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="横着的椭圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="竖着的椭圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="半个横着的椭圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="半个竖着的椭圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="四分之一竖着的椭圆">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="饼环">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="圆饼">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="左上角圆饼">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="对角圆饼">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="四边不同色">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="右透明色">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="圆右透明色">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="圆右红透明色">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="阴阳图前世">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="阴阳图前世2">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="阴阳图今生">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="阴阳图今生2">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="消息框">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="奇怪的图形">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="奇怪的图形2">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="QQ对话">
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<div class="border-radius"></div>
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</div>
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<div class="item" data-brief="圆角百分比">
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<div class="border-radius"></div>
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</div>
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</div>
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</div>
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</body>
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</html>
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```
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效果如下：
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## 爱心
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```html
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<!DOCTYPE html>
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<html>
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<head lang="en">
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<meta charset="UTF-8">
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<title></title>
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<style>
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.heart {
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width: 200px;
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height: 300px;
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/*border: 1px solid #000;*/
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margin: 100px auto;
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position: relative;
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}
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.heart::before, .heart::after {
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content: "左一半";
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width: 100%;
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height: 100%;
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position: absolute;
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background-color: red;
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left: 0;
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top: 0;
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border-radius: 100px 100px 0 0;
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transform: rotate(-45deg);
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text-align: center;
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line-height: 100px;
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color: yellow;
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font-size: 30px;
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font-family: "MIcrosoft Yahei";
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}
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.heart::after {
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content: "右一半";
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left: 71px;
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transform: rotate(45deg);
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}
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</style>
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</head>
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<body>
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<div class="heart">
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</div>
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</body>
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</html>
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```
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效果如下：
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它其实是下面这两个盒子叠起来的：
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改变 `.heart::after` 的 left值，即可叠起来。
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