css实现瀑布流空白处背景粉色背景块

.listbox {
position: relative;
width: 1000px;
margin: 20px auto;
overflow: hidden;
}
.listbox ul {
float: left;
width: 240px;
margin-right: 10px;
background: #ffebf9; /粉色背景（也可使用能重复的背景图片）/
padding-bottom: 9000px; /列之间的差距，建议设大一些/
margin-bottom: -9010px; /公式padding-bottom + 块与块的间距 /
}
.listbox li {
background: #fff; /覆盖ul粉色背景/
padding-bottom: 10px; /块与块的间距/
}
.listbox li .img {
width: 238px;
padding: 15px 0px;
text-align: center;
background: #fff;
border: 1px solid #F5EDE3;
}

<div class="listbox">
<ul>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i6/T1TY_lXoVoXXagOFbX_210x1000.jpg" width="210">
</div>
</li>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i5/T1BVH5Xc0XXXb1upjX_210x1000.jpg" width="210">
</div>
</li>
</ul>
<ul>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i8/T1_7YDXcpnXXagOFbX_210x1000.jpg" width="210">
</div>
</li>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i6/T1coXeXp0dXXb1upjX_210x1000.jpg" width="210">
</div>
</li>
</ul>
<ul>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i8/T1J_fMXnBoXXb1upjX_210x1000.jpg" width="210">
</div></p> <p> </li>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i8/T1dDvoXmhfXXagOFbX_210x1000.jpg" width="210">
</div>
</li>
</ul>
<ul>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i4/T1wR3dXgdfXXb1upjX_210x1000.jpg" width="210">
</div>
</li>
<li>
<div class="img">
<img src="http://localhost/bao/uploaded/i7/T11cPkXlJlXXagOFbX_210x1000.jpg" width="210">
</div>
</li>
</ul>
</div>