<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>任意盒子居中display:flex</title>
<style type="text/css">
*{
margin:0;
padding:0;
}
html,body{
height:100%;
}
.element{
height:100%;
width: 100%;
background-color:blue;
display: flex;
justify-content: center;
align-items: center;
}
</style>
</head>
<body>
<!-- 这种兼容不是很好 -->
<div class="element">
<img src="1.jpg" alt="" />
</div>
</body>
</html>
