.zwtpys a { height:160px;display: table-cell; width:176px; margin:auto;
 vertical-align:middle;
 text-align:center;
 *display: block;
 *font-size:140px;/*约为高度的0.873，200*0.873 约为175*/
 *font-family:Arial;}
.zwtpys img { max-width:176px; max-height:160px; vertical-align:center;display:block; margin:auto;}