<!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;
}
.wrap {
margin: 50px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
width: 300px;
height: 600px;
border: 1px solid red;
}
.wrap div {
width: 100%;
flex: 1;
border: 1px solid red;
color: #000;
}
.wrap .top {
position: relative;
}
.inner {
position: absolute;
inset: 0;
border: 1px solid red;
}
.wrap .top img {
width: 100%;
height: 100%;
/* default */
object-fit: fill;
}
.wrap .middle {
background: url(./search-button.png);
background-position: top;
background-repeat: repeat-y;
background-size: cover;
}
</style>
</head>
<body>
<div class="wrap">
<div class="top">
<!-- 自动匹配容器 宽高 - 需要设定外层容器 -->
<div class="inner">
<img src="./search-button.png" alt="">
</div>
</div>
<div class="middle">middle</div>
<div class="bottom"><img src="./search-button.png" alt=""></div>
</div>
</body>
</html>
标签：匹配,top,宽高,width,自动,background,wrap,border,red From： https://www.cnblogs.com/justSmile2/p/17909814.html