# meta以及media参考
- viewport
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no,minimal-ui">
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- format-detection
<meta name="format-detection" content="telephone=no">//禁止电话号码
<meta name="format-detection" content="email=no">//禁止邮件
<meta name="format-detection" content="telephone=no,email=no">
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- http-equiv
<!-- 优先使用 IE 最新版本和 Chrome -->
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<!-- 不让百度转码 -->
<meta http-equiv="Cache-Control" content="no-siteapp" />
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- 强制竖屏
<!-- uc强制竖屏 -->
<meta name="screen-orientation" content="portrait">
<!-- QQ强制竖屏 -->
<meta name="x5-orientation" content="portrait">
<!-- UC强制全屏 -->
<meta name="full-screen" content="yes">
<!-- QQ强制全屏 -->
<meta name="x5-fullscreen" content="true">
<!-- UC应用模式 -->
<meta name="browsermode" content="application">
<!-- QQ应用模式 -->
<meta name="x5-page-mode" content="app">
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- css
/* 横屏 */
@media screen and (orientation:landscape){
}
/* 竖屏 */
@media screen and (orientation:portrait){
}
/* 窗口宽度<960,设计宽度=768 */
@media screen and (max-width:959px){
}
/* 窗口宽度<768,设计宽度=640 */
@media screen and (max-width:767px){
}
/* 窗口宽度<640,设计宽度=480 */
@media screen and (max-width:639px){
}
/* 窗口宽度<480,设计宽度=320 */
@media screen and (max-width:479px){
}
/* 设备像素比为2 */
/* 常用于1px边框，还应规定 3dppx 的情况 */
@media (min-resolution: 2dppx) {
}
/* windows UI 贴靠 */
@media screen and (-ms-view-state:snapped){
}
/* 打印 */
@media print{
}
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