时间:2021-07-01 10:21:17 帮助过:16人阅读
css样式:
@charset "utf-8"; /* CSS Document */
div { width:200px; height:60px; position:absolute; border:1px dashed #0000ff; }
#block1 { left:20px; top:20px; z-index:1; background-color:#99ccff; }
#block2 { left:80px; top:40px; z-index:3; background-color:#ffff66; }
#block3 { left:60px; top:60px; z-index:-1; background-color:#ff9900; }