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":"<html>\n <head>\n <meta charset=utf-8>\n <style type=\"text/css\">\n /*补全代码*/\n /*统一设置所有div标签的字体大小为20px*/\n div{\n font-size: 20px;\n }\n\n div:not(.green):not(#black){/*选中既不是绿色又不是黑色的div*/\n color: rgb(255,0,0);/*红色*/\n }\n .green{/*通过类名匹配*/\n color: rgb(0,128,0);/*绿色*/\n }\n #black{/*通过id匹配*/\n color: rgb(0,0,0);/*黑色*/\n }\n\n </style>\n </head>\n <body>\n <div>红色</div>\n <div class='green'>绿色</div>\n <div id='black'>黑色</div>\n </body>\n</html>\n","css":"/* html, body {\\n\\twidth: 100%;\\n\\theight: 100%;\\n\\tmargin: 0;\\n\\tpadding: 0;\\n} */","js":"// 请在这里输入代码"}