doyoe / blog Goto Github PK

#demo {
    /*overflow: auto;*/
    width: 400px;
    margin: auto;
    /*padding: 10px 0;*/
    background: #ddd;
}
#demo div {
    height: 30px;
}
.a {
    float: left;
    margin: 10px;
    background: red;
}
.b {
    clear: left;
    background: green;
    margin-top: 120px;
}

<div id="demo">
    <div class="a">float:left</div>
    <div class="b">clear:left</div>
</div>