{ "res_code": 0, "res_error": "", "res_data": [ {"id":"30928","classid":"18","onclick":"861","userid":"1","username":"admin","truetime":"1679591353","lastdotime":"1679591353","newstime":"1679591263","titleurl":"/qianduan/php/30928.html","keyboard":"","title":"CSS中的五大选择器","titlepic":"","smalltext":"1、元素选择器最常见的css选择器当属元素选择器了,在HTML文档中该选择器通常是指某种HTML元素,例如:p,h2,span,a,div乃至html。例如:html {background-color: black;}p {font-size: 30px; backgroud-color: gray;}h2 {bac"}, ] }