###效果圖 ###佈局方式 html <a href="" class="item"> <img alt="" src="images/icon-rule.gif" class="img-full"> </a> csscss
.item{ width: 100%; display: block; height:0; padding-bottom: 75%; overflow: hidden; position: relative; } .item img { position: absolute; left: 0; top:0; border-top-left-radius:3px; border-top-right-radius:3px; min-height: 100%; }