<div style="display:table;height:400px;">

    <span style="display:table-cell;vertical-align:middle;">你要填写的内容</span>

</div>

.wrapper{

    height:400px;

    display:table;

}

.content{

    vertical-align:middle;

    display:table-cell;

    border:1pxsolid#FF0099;

    background-color:#FFCCFF;

    width:760px;

}