题解 | CSS选择器——标签、类、ID选择器
CSS选择器——标签、类、ID选择器
https://www.nowcoder.com/practice/f76f7b7cbc8a47188481b425380b0785
<html> <head> <meta charset=utf-8> <style type="text/css"> /*补全代码*/ body{ color:rgb(255,0,0); font-size:20px } .green{ color:rgb(0,128,0) } #black{ color:rgb(0,0,0) } </style> </head> <body> <div>红色</div> <div class='green'>绿色</div> <div id='black'>黑色</div> </body> </html>