[css冷门]一段能显示出页面结构层次的代码

* { background-color: rgba(255,0,0,.2); }

* * { background-color: rgba(0,255,0,.2); }

* * * { background-color: rgba(0,0,255,.2); }

* * * * { background-color: rgba(255,0,255,.2); }

* * * * * { background-color: rgba(0,255,255,.2); }

* * * * * * { background-color: rgba(255,255,0,.2); }