<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.father {
background-color: #ffff99;
border: 1px solid #111111;
}
.father div {
padding:10px;
margin: 15px;
border: 1px dashed #111111;
}
div:nth-child(1){
float:left;
}
div:nth-child(2){
float:left;
}
div:nth-child(3){
float:right;
}
.father .clear {
clear: both;
padding: 0;
margin: 0;
-webkit-order: 0;
-moz-order: 0;
-ms-order: 0;
-o-order: 0;
order: 0;
}
</style>
</head>
<body>
<div class="father">
<div class="box1">box1</div>
<div class="box2">box2</div>
<div class="box3">
box3<br/>
box3<br/>
box3<br/>
box3<br/>
</div>
<div class="clear"></div>
<div>ddddddddddd</div>
</div>
</body>
</html>
