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                <div class="container">
	<div class="v-c">


                body {
	margin: 0;

.container {
	background-color: #fe435e;
	padding: 0px 20px;;
	height: 400px;
	/* 父容器需要设置position, 使需要竖直居中的元素相对父容器进行绝对定位*/
	position: relative;

.v-c {
	width: 400px;
	padding: 0 20px;
	padding-right: 20px;
	background-color: #ade4eb;
	height: 200px;
	/* 使用绝对定位使元素竖直居中*/
	position: absolute;
	top: 50%;
	margin-top: -100px;	
	/* 需要考虑 padding 和 border, 如果没有设置 box-sizing: border-box; 的话*/

p {
	margin: 0 auto;
	color: #fff;
	line-height: 200px;