<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>flex图片布局</title>
<style>
body {
margin: 0;
padding: 0;
}
.box {
float: left;
30%;
margin-top: 10px;
margin-left: 2.5%;
height: 0;
padding-bottom: 33.98%;
background-color: #dbe0e4;
background:red;
background-size: cover;
display:block;position: relative;
}
img{
background: red;
margin: 0 auto;
max- 100%;
/*超出宽度的图片限制最大显示宽度
max-height:250px;
/*超出高度的图片限制最大显示高度*/
position: absolute;
top: 50%;
left: 50%;
-moz-transform: translate(-50%, -50%);
-ms-transform: translate(-50%, -50%);
-webkit-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
}
</style>
</head>
<body>
<div class="box">
<img src="" alt="">
</div>
<div class="box">
<img src="" alt="">
</div>
<div class="box">
<img src="" alt="">
</div>
<div class="box">
<img src="" alt="">
</div>
<div class="box">
<img src="" alt="">
</div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
</body>
</html>