SOURCE

<div class='box'>
	<div class='left'> </div>
	<div class='right'>
		<div class='little'></div>
		<div class='little'></div>
		<div class='little'></div>
	</div>
</div>

	* {
		margin: 0;
		padding: 0;
	}
	.left{
		background: #73DE80;	/* 绿色 */
		opacity: 0.5;
		border: 3px solid #F31264;
		width: 200px;
		height: 200px;
		float: left;
	}
	.right{						/* 粉色 */
		background: #EF5BE2;
		opacity: 0.5;
		border: 3px solid #F31264;
		width:400px;
		min-height: 100px;
	}
	.box{
		background:#888;
		height: 100%;
		margin-left: 50px;
    overflow: hidden;
}
.little{
		background: #fff;
		width: 50px;
		height: 50px;
		margin: 10px;
		float: left;
	}
	}