Edit in JSFiddle

<div class="father">
 <div class="float"></div>
</div>
<div>我是内容 </div>
.father:after {
 content: '';
 display: table;
 clear: both;
}
.float {
 float:left;
 width: 60px; height: 64px;
 background-color: #ff00ff;
}
.father + div {
 margin-top: -2px;
}