webveuje/csspress/demo/rem2.html

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2021-01-28 09:06:45 +08:00
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script>
//designWidth:设计稿的实际宽度值,需要根据实际设置
//maxWidth:制作稿的最大宽度值,需要根据实际设置
//这段js的最后面有两个参数记得要设置一个为设计稿实际宽度一个为制作稿最大宽度例如设计稿为750最大宽度为750则为(750,750)
; (function (designWidth, maxWidth) {
var doc = document,
win = window,
docEl = doc.documentElement,
remStyle = document.createElement("style"),
tid;
function refreshRem() {
var width = docEl.getBoundingClientRect().width;
maxWidth = maxWidth || 540;
width > maxWidth && (width = maxWidth);
var rem = width * 100 / designWidth;
remStyle.innerHTML = 'html{font-size:' + rem + 'px;}';
}
if (docEl.firstElementChild) {
docEl.firstElementChild.appendChild(remStyle);
} else {
var wrap = doc.createElement("div");
wrap.appendChild(remStyle);
doc.write(wrap.innerHTML);
wrap = null;
}
//要等 wiewport 设置好后才能执行 refreshRem不然 refreshRem 会执行2次
refreshRem();
win.addEventListener("resize", function () {
clearTimeout(tid); //防止执行两次
tid = setTimeout(refreshRem, 300);
}, false);
win.addEventListener("pageshow", function (e) {
if (e.persisted) { // 浏览器后退的时候重新计算
clearTimeout(tid);
tid = setTimeout(refreshRem, 300);
}
}, false);
if (doc.readyState === "complete") {
doc.body.style.fontSize = "16px";
} else {
doc.addEventListener("DOMContentLoaded", function (e) {
doc.body.style.fontSize = "16px";
}, false);
}
})(750, 750);
</script>
<style>
*{
padding:0;
margin: 0;
}
body{
background-color: #F0EEEF;
}
.nav{
height: 1.375rem;
background: #DE3548;
color: white;
font-size: 0.37rem;
text-align: center;
line-height: 1.675rem;
}
.car{
height: 2.95rem;
background: white;
border-top: 1px solid white;
/* padding-top: 0.54rem;
padding-left: 0.55rem; */
box-sizing: border-box;
margin-bottom: 0.19rem;
}
.carinfo{
width: 4.28rem;
height: 0.96rem;
display: flex;
justify-content: space-between;
margin-top: 0.54rem;
margin-left: 0.55rem;
}
.left{
width: 0.96rem;
height: 0.96rem;
background: skyblue;
}
.right{
width:2.76rem;
height: 0.95rem;
border-left: 0.02rem solid #D9D9D9;
padding-left: 0.32rem;
font-size: 0.22rem;
color: #999999;
display: flex;
flex-direction: column;
justify-content: center;
}
.line{
/* width:; */
height: 0.02rem;
background: #D9D9D9;
margin-top:0.49rem;
}
.btns{
display: flex;
justify-content: space-around;
align-items: center;
height: 0.94rem;
}
.btn{
width:2.03rem;
height:0.54rem;
border:0.02rem solid #DF3348;
color: #DF3348;
line-height: 0.54rem;
text-align: center;
}
.add{
width: 7.17rem;
height: 0.82rem;
background: #E03547;
color: white;
font-size: 0.34rem;
text-align: center;
line-height: 0.82rem;
font-weight: bold;
}
.addw{
width: 100%;
background: white;
height: 1.07rem;
position: fixed;
bottom: 0px;
display: flex;
justify-content: center;
align-items: center;
}
</style>
</head>
<body>
<div class="nav">我的车库</div>
<div class="carlist">
<div class="car">
<div class="carinfo">
<div class="left"></div>
<div class="right">
<div>江淮安驰-小公主</div>
<div>2019款2.9T 手自一体 </div>
</div>
</div>
<div class="line"></div>
<div class="btns">
<div class="btn">设为默认</div>
<div class="btn">设为默认</div>
</div>
</div>
<div class="car">
<div class="carinfo">
<div class="left"></div>
<div class="right">
<div>江淮安驰-小公主</div>
<div>2019款2.9T 手自一体 </div>
</div>
</div>
<div class="line"></div>
<div class="btns">
<div class="btn">设为默认</div>
<div class="btn">设为默认</div>
</div>
</div>
<div class="car">
<div class="carinfo">
<div class="left"></div>
<div class="right">
<div>江淮安驰-小公主</div>
<div>2019款2.9T 手自一体 </div>
</div>
</div>
<div class="line"></div>
<div class="btns">
<div class="btn">设为默认</div>
<div class="btn">设为默认</div>
</div>
</div>
<div class="car">
<div class="carinfo">
<div class="left"></div>
<div class="right">
<div>江淮安驰-小公主</div>
<div>2019款2.9T 手自一体 </div>
</div>
</div>
<div class="line"></div>
<div class="btns">
<div class="btn">设为默认</div>
<div class="btn">设为默认</div>
</div>
</div>
<div class="car">
<div class="carinfo">
<div class="left"></div>
<div class="right">
<div>江淮安驰-小公主</div>
<div>2019款2.9T 手自一体 </div>
</div>
</div>
<div class="line"></div>
<div class="btns">
<div class="btn">设为默认</div>
<div class="btn">设为默认</div>
</div>
</div>
<div class="car">
<div class="carinfo">
<div class="left"></div>
<div class="right">
<div>江淮安驰-小公主</div>
<div>2019款2.9T 手自一体 </div>
</div>
</div>
<div class="line"></div>
<div class="btns">
<div class="btn">设为默认</div>
<div class="btn">设为默认</div>
</div>
</div>
<div class="addw">
<div class="add">设为默认</div>
</div>
</div>
</body>
</html>