我想知道是否有更简单的方法来实现我的需求：
对于h2，p，ul，[最终更多]
.left > h2:first-child,
.left > div:first-child > h2:first-child,
.left > p:first-child,
.left > div:first-child > p:first-child,
.left > ul:first-child,
.left > div:first-child > ul:first-child
会有类似的事情：
.left > [LIST OF TAGS]:first-child,
.left > div:first-child > [LIST OF TAGS]:first-child
谢谢