已采纳回答 / Smile伊尊
鼠标经过的悬浮层位于Li标签内:<li><a href="#">图书、音像、数字商品</a> <div id="submenu"> <div id="leftdiv"> ...
2016-11-29
position:relative;是相对于自身偏移的。
position:absolute;才是相对于父元素父元素发生偏移的!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!我还以为我理解错了,
position:absolute;才是相对于父元素父元素发生偏移的!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!我还以为我理解错了,
2016-11-24
background:#ccc url(http://img1.sycdn.imooc.com//5411027300014f0200220030.jpg) no-repeat right;