垂直居中对齐的CSS示例代码

.elment{
position:relative;
:50%;
transform:translateY(-50%);
}

<div class="outer">
<div class="ner">vertical align anythg with less<div>
</div>

.verticalAlign{
position: relative;
: 50%;
-webkit-transform: translateY(-50%);
-ms-transform: translateY(-50%);
transform: translateY(-50%);
}
.outer{
width:400px;
height:200px;
border:1px solid #000;
marg:10px;
text-align:center;
}
.ner{
.verticalAlign;
}