SOURCE

console 命令行工具 X clear

                    
>
console
<header>
    <div class="container">

    </div>
</header>
<div class="container">
    
</div>
*{
    margin: 0;
    padding: 0;
}
body{
    background: #f2f2f2;
}
header{
    background: white;
    height: 50px;
    line-height: 50px;
}
.container{
    width: 960px
}