<meta> Tag Summary

1.Pragram: Disable Browser caching

2.expires: Used to set the expiration time of the Web page, cache

The previous two caches, of course the cache also have: Cache-control policy, Last-modifed/if-modified-since, Etag/if-none-match (priority above last-modifed), note F5 and CTRL + F5

3. After a period of time to go to another page

<meta http-equiv= "Refresh" content= "0; Url= ">"

4. Set the character set used by the page (common)

5. Tell the search engine what your page's keywords are

6. Tell the search engine the main content of your website

Forces the page to appear on a separate page in the current window, preventing the page from being called in another IFRAME

7. Display language

<meta http-equiv= "Content-language" content= "ZH-CN"/>

8. In the current project, the default is the highest mode display of the page set to IE8, eliminating the click button settings, you can add meta tags

<meta http-equiv= "x-ua-compatible" content= "Ie=edge" >

Of course JS Window.navigator a lot of properties can be used to determine the browser type, platform and so on. Specific brain repair.

Under IE, you can use the IF (window.navigator.appname= "Microsoft Internet Explorer") {

if (Document.documentmode)

{var ieversion=document.document.mode;

}

}

To get the IE version;

Of course, some of the CSS or JS code needs to be executed in different versions, you can pass the conditional comment on the way <!--[if Lt/lte/gt/gte ie 8]><[endif]-->;

<meta> Tag Summary