原理是 css 的 column 屬性，話不多說直接上代碼
<html>
<head>
<link rel="stylesheet" type="text/css" href="css/main.css">
<script src="js/jquery-2.1.0.js" type="text/javascript" charset="utf-8"></script>
<style type="text/css">
* {
padding: 0;
margin: 0;
}
#main {
-webkit-column-count: 2;
-moz-column-count: 2;
column-count: 2;
-moz-column-gap: 20px;
-webkit-column-gap: 20px;
column-gap: 20px;
padding: 10px;
}
.box {
padding: 15px;
border: solid 2px #eeeeee;
border-radius: 4px;
margin-bottom: 15px;
cursor: pointer;
}
.box img {
width: 100%;
}
</style>
</head>
<body>
<div id="main">
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<!-- 這裏省略多個class爲box的div-->
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
<div class="box">
<div class="pic">
<img src="">
</div>
</div>
</div>
</body>
<script type="text/javascript">
var width = 300,
height = 300;
$('.box img').each(function() {
// 隨機圖片的高寬，如果大小一樣，就沒必要用瀑布流了
width = Math.floor(Math.random() * 100) + 300;
height = Math.floor(Math.random() * 500) + 300;
$(this).attr('src', 'http://placekitten.com/' + height + '/' + width);
});
</script>
</html>