* { padding:0; margin:0; } body { width:1500px; background-color:#00FFFF; } p { line-height:80px; height:80px; } #box { background-color:red; width:100%; line-height:50px; height:50px; } .box1 { position:fixed; top:0px; left:0px; }
更新时间:2020-10-09 00:59:07