css设置z-index 失效的解决方法
发布时间：2016-12-27 来源：查字典编辑
摘要：UntitledPage#king_of_diamonds{position:relative;background-color:gray;...
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>Untitled Page</title> <style type="text/css">#king_of_diamonds { position: relative; background-color:gray; width:30px; height:30px; left: 145px; top: 145px;}#ace_of_diamonds { position:relative; background-color:blue; width:300px; height:300px; left: 160px; top: 130px; z-index: 1;} </style></head><body> <form id="form1" runat="server"> <div id="king_of_diamonds"> a </div> <div id="ace_of_diamonds"> b </div> </form></body></html>
提示：您可以先修改部分代码再运行