基于jquery实现的图片在各种分辨率下未知的容器内上下左右居中_jquery

DIV：

${pic.desc}

${pic.poi}

by ${pic.username}

CSS:

.pic_conent{
height: 720px;/*这个高度会被js改掉*/
text-align: center;
display: table-cell;
vertical-align: middle;
}
.pic_layer{text-align:center; width:100%; display:inline-block; vertical-align:middle;}

jquery:

$(function() {
var surH = $(window).height();
$(".pic_conent").height(surH);
window.onresize=function(){
var surH = $(window).height();
$(".pic_conent").height(surH);
}