<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <ptml xmlns = "http://www.w3.org/1999/xhtml"> <pead> <title> tip window </ title> <meta http-equiv = "Content-Type" content = "text/html; charset = gb2312 "/> <style> body {font-size: 12px ;}. tip {color: red; text-decoration: none; position: relative ;}. tip span {display: none ;}. tip: hover {cursor: h And ;}. tip: hover. popbox {display: block; position: absolute; top: 15px; left:-30px; width: 100px; background-color: #424242; color: # fff; padding: 10px ;} </style> </pead> <body> CSS </p> W3C creates CSS standards to replace HTMLHyper Text Mark-up Language (Hypertext Markup Language) table layout, frame, and other languages. The combination of pure CSS layout and structured XHTMLThe Extensible HyperText Markup Language can help designers separate the appearance and structure, making site access and maintenance easier. </P> </body> </ptml>
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