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好久没更新了

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asd
2021-03-23 10:58:10 +08:00
parent eca64f86c0
commit 9bf8e8d020
123 changed files with 24337 additions and 214 deletions
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52
csspress/demo/absolute.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
div {
width: 60px;
height: 60px;
}
.box1 {
width: 200px;
height: 200px;
background: yellow;
margin: 20px;
/* position:static */
position: absolute;
}
.box2 {
background: red;
position: absolute;
top: 0px;
left: 0px;
}
</style>
</head>
<body>
<div class="box1">
<div class="box2"></div>
</div>
<p>
<p> 注：这里红色的div是依据 body定位的，而不是根据父元素黄色的div 定位，</p>
<p> 加上position static 后也是根据body 定位，</p>
<p>当父元素的Position声明为 absolute 时，红色会依据父级黄色定位，但是会超脱文档流，影响下面的元素</p>
</p>
</body>
</html>

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csspress/demo/fixed.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
body{
overflow: auto;
}
.box1 {
background: yellow;
position: sticky;
top: 0;
width: 100%;
/* height: 50px; */
}
.box2 {
height: 20px;
position: fixed;
top: 30px;
width: 100%;
background: red;
}
.box3{
width: 60px;
height: 900px;
background: pink;
}
</style>
</head>
<body>
<div class="box1">暖暖</div>
<div class="box2"></div>
<div class="box3"></div>
</body>
</html>

90
csspress/demo/flex.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin:0;
padding:0;
* {
margin: 0;
padding: 0;
}
.box{
.box {
width: 1000px;
height: 500px;
background: pink;
display:flex;
display: flex;
/* 通过display:flex来把目标元素设置成flex布局 */
flex-direction: row;
/* align-items: center; */
justify-content: space-between;
/* flex-direction 属性决定主轴的方向，值为row的时候水平排列 起点在左 */
}
.box1{
.box1 {
width: 1000px;
height: 500px;
background: gold;
display:flex;
flex-direction: row;
align-items: center;
/*
justify-content: space-between;
justify-content: space-around;
justify-content: space-center;
*/
display: flex;
flex-direction: row-reverse;
}
.left,.left1{
.left,
.left1 {
width: 200px;
height: 200px;
background: red;
}
.right,.right1{
.right,
.right1 {
width: 200px;
height: 200px;
background: blue;
}
.box3 {
flex-direction: column;
}
.box4 {
flex-direction: column-reverse;
}
</style>
</head>
<body>
<div class="box">
<div class="box" style="margin-bottom: 15px;">
<div class="left"></div>
<div class="right"></div>
<div>
这里是flex-direction:row的状况 即水平排列 起点在左侧
</div>
</div>
<div class="box">
<div class="left"></div>
<div class="left"></div>
<div class="left"></div>
<div class="left"></div>
<div class="left"></div>
<div class="left"></div>
<div class="right"></div>
<div>
这里是flex-direction:row的状况 即水平排列 起点在左侧
对于溢出的状况，flex-wrap 可以定义是否换行
<P>默认属性值为 nowrap 不换行；其他属性还有wrap(换行), wrap-reverse(换行，第二行反向排列)</P>
</div>
</div>
<div class="box1">
<div class="left1"></div>
<div class="right1"></div>
<div class="left1"></div>
<div>
这里是flex-direction:column的状况 即垂直排列 起点在上面
</div>
</div>
<div class="box box3">
<div class="left"></div>
<div class="right"></div>
<div>
这里是flex-direction:column的状况 即垂直排列 起点在下面
</div>
</div>
<div class="box1 box4">
<div class="right1"></div>
<div class="left1"></div>
<div>
这里是flex-direction:column-reverse的状况 即垂直排列 起点在下面
</div>
</div>
</body>
</html>

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csspress/demo/flex1pailie.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin:0;
padding:0;
}
.box{
width: 1000px;
height: 500px;
background: pink;
display:flex;
/* 通过display:flex来把目标元素设置成flex布局 */
flex-direction: row;
/* flex-direction 属性决定主轴的方向，值为row的时候水平排列 起点在左 */
justify-content: center;
}
.box1{
width: 1000px;
height: 500px;
background: gold;
display:flex;
flex-direction: row;
justify-content: space-between;
}
.left,.left1{
width: 200px;
height: 200px;
background: red;
}
.right,.right1{
width: 200px;
height: 200px;
background: blue;
}
.box3{
justify-content: space-around;
}
.box4{
flex-direction: column-reverse;
}
</style>
</head>
<body>
<div style="margin-bottom: 50px;">
注：以下所有实例 基于flex-direction:row的情况，即水平排列 起点在左边
</div>
<div class="box">
<div class="left"></div>
<div class="right"></div>
</div>
<div style=" margin-bottom: 30px;">
上面是 justify-content:center 居中的状况
</div>
<div class="box1">
<div class="left"></div>
<div class="right"></div>
</div>
<div style=" margin-bottom: 30px;">
上面是 justify-content:space-between 居中的状况
两端对齐 项目之间的间隔都相等
</div>
<div class="box box3">
<div class="left"></div>
<div class="right"></div>
</div>
<div style=" margin-bottom: 30px;">
上面是 justify-content:space-around 居中的状况
每个项目两侧的间隔相等 项目到边框有间距
即两端不对齐
</div>
</body>
</html>

112
csspress/demo/flexjiaochazhou.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin:0;
padding:0;
}
.box{
width: 1000px;
height: 500px;
background: pink;
display:flex;
/* 通过display:flex来把目标元素设置成flex布局 */
flex-direction: row;
/* flex-direction 属性决定主轴的方向，值为row的时候水平排列 起点在左 */
align-items: center;
}
.box1{
width: 1000px;
height: 500px;
background: gold;
display:flex;
flex-direction: row;
align-items: flex-start;
}
.left,.left1{
width: 200px;
height: 200px;
background: red;
}
.right,.right1{
width: 200px;
height: 200px;
background: blue;
}
.box3{
align-items: flex-end;
}
.box4{
align-items: baseline ;
}
.box5{
align-items: stretch;
}
.lefta{
height:auto
}
.boxfin{
flex-direction: column;
align-items: center;
}
</style>
</head>
<body>
<div style="margin-bottom: 50px;">
注：以下所有实例 基于flex-direction:row的情况，即水平排列 起点在左边
且 主轴为默认
</div>
<div class="box">
<div class="left"></div>
<div class="right"></div>
</div>
<div style=" margin-bottom: 30px;">
上面是 align-items:center 居中的状况
</div>
<div class="box1">
<div class="left"></div>
<div class="right"></div>
</div>
<div style=" margin-bottom: 30px;">
上面是 align-items: flex-start; 起点在上面
</div>
<div class="box box4">
<div class="left"></div>
<div class="right"></div>
</div>
<div style=" margin-bottom: 30px;">
上面是 align-items:base-line 项目的第一行文字的基线对齐的情况
</div>
<div class="box1 box5">
<div class="left lefta"></div>
<div class="right lefta"></div>
</div>
<div style=" margin-bottom: 30px;">
上面是 align-items:stretch（默认值） 如果项目未设置高度或设为auto，将占满整个容器的高度。
</div>
<div class="box1 boxfin">
<div class="left"></div>
<div class="right"></div>
</div>
<div class="zong">
总结1：flex-direction属性定义的是主轴方向，默认为水平，所以 交叉轴方向默认为垂直;
<p>当 flex-direction的值为column的时候，align-items决定的就是垂直方向的排列方式</p>
<b>align-items决定的是交叉轴的排列方式 而不一定是单指 垂直的排列方式</b>
</div>
</body>
</html>

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csspress/demo/position.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
</body>
</html>

35
csspress/demo/relative.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
div{
width: 60px;
height: 60px;
}
.box1 {
background: yellow;
}
.box2 {
background: red;
position: relative;
top: 20px;
left: 30px;
}
</style>
</head>
<body>
<div class="box1">暖暖</div>
<div class="box2"></div>
</body>
</html>

2
csspress/demo/zishiying1.html
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</style>
</head>
<body>
媒体查询实现自适应
</body>
</html>

45
csspress/demo/zishiying2.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script>
document.querySelectorAll
</script>
<style>
*{
margin:0px;
margin:0;
padding: 0;
}
html , body{
width:100% ;
html,
body {
width: 100%;
height: 100%;
}
.box{
width: 100%;
height: 60%;
border: 1px solid black;
}
.content{
width: 60px;
height: 60px;
width: 30%;
height: 30%;
background: pink;
margin: 30px;
}
/* @media (max-width: 780px) {
.box{
width: 600px;
}
.content{
background: skyblue;
}
}
@media (max-width: 600px) {
.box{
width: 500px;
}
.content{
background: rgb(135, 235, 202);
}
} */
</style>
</head>
<body>
<div class="box">
<!-- <div class="content"></div> -->
</div>
百分比实现自适应
<div class="box"></div>
</body>
</html>