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meta标签提供关于HTML文档的元数据。元数据不会显示在页面上,但是对于机器是可读的。它可用于浏览器(如何显示内容或重新加载页面),搜索引擎(关键词),或其他 web 服务。
必要属性
| 属性 | 值 | 描述 |
|---|---|---|
| content | some text | 定义与http-equiv或name属性相关的元信息 |
可选属性
| 属性 | 值 | 描述 |
|---|---|---|
| http-equiv | content-type / expire / refresh / set-cookie | 把content属性关联到HTTP头部。 |
| name | author / description / keywords / generator / revised / others | 把 content 属性关联到一个name。 |
| content | some text | 定义用于翻译 content 属性值的格式。 |
<meta charset='utf-8' />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta http-equiv="X-UA-Compatible" content="IE=6" >
<meta http-equiv="X-UA-Compatible" content="IE=7" >
<meta http-equiv="X-UA-Compatible" content="IE=8" >
默认用极速核(Chrome):<meta name="renderer" content="webkit">
默认用ie兼容内核(IE6/7):<meta name="renderer" content="ie-comp">
默认用ie标准内核(IE9/IE10/IE11/取决于用户的IE):<meta name="renderer" content="ie-stand">
国内双核浏览器默认内核模式如下:
<meta http-equiv="Pragma" content="no-cache">
<meta name="msapplication-TileColor" content="#000"/>
<meta name="msapplication-TileImage" content="icon.png"/>
<meta name="mobile-agent"content="format=[wml|xhtml|html5]; url=url">
<meta http-equiv="Cache-Control" content="no-siteapp" />
<meta name="keywords" content="your tags" />
<meta name="description" content="150 words" />
<meta name="robots" content="index,follow" />
<meta http-equiv="refresh" content="0;url=" />
<meta name="author" content="author name" />
<meta name="google" content="index,follow" />
<meta name="googlebot" content="index,follow" />
<meta name="verify" content="index,follow" />
<meta name="viewport" content="width=device-width,initial-scale=1.0,minimun-scale=1.0,maximum-scale=1.0,user-scalable=no"/>
注意,很多人使用initial-scale=1到非响应式网站上,这会让网站以100%宽度渲染,用户需要手动移动页面或者缩放。如果和initial-scale=1同时使用user-scalable=no或maximum-scale=1,则用户将不能放大/缩小网页来看到全部的内容。
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="theme-color" content="#11a8cd">
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<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="apple-mobile-web-app-title" content="标题">
<meta content="telephone=no" name="format-detection" />
<meta content="email=no" name="format-detection" />
<meta name="apple-itunes-app" content="app-id=myAppStoreID, affiliate-data=myAffiliateData, app-argument=myURL">
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<meta name="HandheldFriendly" content="true">
<meta name="MobileOptimized" content="320">
<meta name="screen-orientation" content="portrait">
<meta name="x5-orientation" content="portrait">
<meta name="full-screen" content="yes">
<meta name="x5-fullscreen" content="true">
<meta name="browsermode" content="application">
<meta name="x5-page-mode" content="app">
<meta name="msapplication-tap-highlight" content="no">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1.0,minimun-scale=1.0,maximum-scale=1.0,user-scalable=no">