随着智能手机、平板电脑越来越流行,许多网站都开始考虑为这些移动设备开发一套专属布局和样式。幸好 CSS3 提供了针对不同设备的查询规则,让这一目的变得非常容易实现。
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<style type= "text/css" >
/* 说明:CSS3 为不同媒介设置样式的方式(CSS3 Media Queries)
来源:http://www.stuffandnonsense.co.uk/blog/about/hardboiled_css3_media_queries/
整理:CodeBit.cn [ http://www.codebit.cn ]
*/ /* 智能手机 (纵向 和 横向) ----------- */ @media only screen
and (min-device-width : 320px )
and (max-device-width : 480px ) {
/* Styles */ } /* 智能手机 (横向) ----------- */ @media only screen
and (min-width : 321px ) {
/* Styles */ } /* 智能手机 (纵向) ----------- */ @media only screen
and (max-width : 320px ) {
/* Styles */ } /* iPad 系列 (纵向 和 横向) ----------- */ @media only screen
and (min-device-width : 768px )
and (max-device-width : 1024px ) {
/* Styles */ } /* iPad 系列 (横向) ----------- */ @media only screen
and (min-device-width : 768px )
and (max-device-width : 1024px )
and (orientation : landscape ) {
/* Styles */ } /* iPad 系列 (纵向) ----------- */ @media only screen
and (min-device-width : 768px )
and (max-device-width : 1024px )
and (orientation : portrait ) {
/* Styles */ } /* 台式机 和 笔记本 ----------- */ @media only screen
and (min-width : 1224px ) {
/* Styles */ } /* 大屏幕 ----------- */ @media only screen
and (min-width : 1824px ) {
/* Styles */ } /* iPhone 4 ----------- */ @media only screen and (-webkit-min-device-pixel-ratio : 1.5 ),
only screen and (min-device-pixel-ratio : 1.5 ) {
/* Styles */ } </style> |
当然,将所有样式放在一起不是一个好主意,你可以将不同设备特定的 CSS 放到不同文件中,然后再通过 link 节点的 media 属性来加载:
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< head >
< link rel = "stylesheet" href = "smartphone.css"
media="only screen and (min-device-width : 320px) and (max-device-width : 480px)"> < link rel = "stylesheet" href = "smartphone-landscape.css"
media = "only screen and (min-width : 321px)" >
< link rel = "stylesheet" href = "smartphone-portrait.css"
media = "only screen and (max-width : 320px)" >
< link rel = "stylesheet" href = "ipad.css"
media="only screen and (min-device-width : 768px) and (max-device-width : 1024px)"> < link rel = "stylesheet" href = "ipad-landscape.css"
media="only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape)"> < link rel = "stylesheet" href = "ipad-portrait.css"
media="only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait)"> < link rel = "stylesheet" href = "widescreen.css"
media = "only screen and (min-width : 1824px)" >
< link rel = "stylesheet" href = "iphone4.css"
media="only screen and (-webkit-min-device-pixel-ratio : 1.5), only screen and (min-device-pixel-ratio : 1.5)"> </ head >
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