cssdemo.css样式表文件内容： .font_style { font-family: "宋体"; font-size: 24px; } body{ font-family:"宋体","Times New Roman"; background-color:#CCCCCC; } a:link{ text-decoration:none; } a:visited { text-decoration: none; } a:hover { font-size: 18px; color: #FF0000; text-decoration: none; } a:active { text-decoration: none; } 包含CSS样式