摘要:
标签选择器 <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> /*标签选择器*/ div { color: red; } </style> </head> <body> <div>打法</div> </body 阅读全文
摘要:
<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> .header, .content, .footer { width: 1000px; margin: 0 auto 阅读全文