conditional-comments | 易学教程

When would <!--[if !IE]> be used?

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问题 I was pondering this question last night while debugging some things in IE7, when I typed in <!--[if IE7]>... it occured to me that I've seen <!--[if !IE]> . Now what get me is that as far as I understand it, only IE recognises these conditional comments, so to to say if NOT IE makes no sense, does IE see this and say "Iam IE, so this doesn't apply to me?" or are people getting confused with which browsers can recognise it? So my question is. Where would you use <!--[if !IE]> and what is its

Is it possible to use IE conditional comments to redirect?

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问题 I've got a splash page which simply jams up in IE, and creating a workaround would require a tremendous amount of jQuery. Is there any way to use IE's conditional comments to skip the splash page, and redirect to the main page? 回答1: Put a meta refresh inside the conditional comment: <meta http-equiv="refresh" content="0;url=mainpage-url"/> 来源： https://stackoverflow.com/questions/13189162/is-it-possible-to-use-ie-conditional-comments-to-redirect

Is it bad to put <div> elements within the <head> tags?

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问题 I want to use conditional comments to make a DIV appear ONLY in browsers with IE7 or older, like this:  As far as I understand, conditional comments only work in the header. Is this bad? Should I rather use conditional comments to instert a stylesheet that makes an invisible DIV visibility:visible ? 回答1: The best way is to keep the content as is in the document body but instead apply a style sheet

Conditional comment for IE=9 compatibility mode

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问题 I'm using the following conditional comment to notify users thet they are running a non-supported browser version.  I noticed that this comment is being triggered on IE9 Compatibility mode as-well what was not my attention. Is there a way to make IE9 Compatibility mode an exception or to distinguish it and IE7 mode from regular IE7 so that I can customize the message for them? 回答1: One easy way to check compatibility mode is: try{ JSON } catch (e){ alert(

Why is Stylesheet loaded when Contional Comment states it should be ignored?

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问题 I thought conditional comments would instruct the browser to ignore the content if the condition is not met?! For example I want to only include a stylesheet if IE6 is the browser. The following in located in the <HEAD> element of the page.  or  How come IE7, IE8 and FF3 all load

Is there a way to introduce Internet Explorer conditional comments using JavaScript?

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问题 I have a segment of HTML code which includes a conditional comment:  This code was tested and works correctly when included in the HEAD section of the page, on the initial page rendering. I would like to introduce the same conditional CSS to an existing page using JavaScript in an Ajax response. I have tried: var comment = document.createComment("[if IE]>\n<link rel=\"stylesheet\" ...>\n<[endif]"); Wicket.Head.addElement(comment); //this is

Creating valid conditional comments for stylesheets, without a 'bogus comment' validator error

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问题 I have the following in my head tag: <link rel="stylesheet" href="Scripts/styleMain.css" media="all" type="text/css" /> <![if gte IE 9]>  Problem is, the second line is

Why is Stylesheet loaded when Contional Comment states it should be ignored?

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I thought conditional comments would instruct the browser to ignore the content if the condition is not met?! For example I want to only include a stylesheet if IE6 is the browser. The following in located in the <HEAD> element of the page.  or  How come IE7, IE8 and FF3 all load that stylesheet?! NOTE: Changing the condition to [if lte IE 6] does not make any difference! :( MAJOR

JSF 2 how to set html style depending on browser version

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问题 What i want to do in my JSF 2 application is to set proper html style depending on browser version, here is sample code:      How to do that in JSF 2? What is the best/simplest way? I found something interesting in Omnifaces ( o:conditionalComment ) but it

Is there a way to introduce Internet Explorer conditional comments using JavaScript?

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I have a segment of HTML code which includes a conditional comment:  This code was tested and works correctly when included in the HEAD section of the page, on the initial page rendering. I would like to introduce the same conditional CSS to an existing page using JavaScript in an Ajax response. I have tried: var comment = document.createComment("[if IE]>\n<link rel=\"stylesheet\" ...>\n<[endif]"); Wicket.Head.addElement(comment); //this is framework code that just appends the element to the HEAD node of the page. I debugged and verified that