Comments on: Check whether a CSS property is supported http://lea.verou.me/2009/02/check-if-a-css-property-is-supported/ Life at the bleeding edge (of web standards) Fri, 10 Feb 2012 07:25:15 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Lea Verou http://lea.verou.me/2009/02/check-if-a-css-property-is-supported/#comment-86 Lea Verou Thu, 26 Mar 2009 04:41:38 +0000 http://leaverou.me/?p=3#comment-86 You're right about document.documentElement. I thought that in IE6- Quirks mode it had issues, but as it turns out, it works fine for this case at least. I also hadn't thought about the case of intrinsic event handlers. Good points, thank you. :) You’re right about document.documentElement. I thought that in IE6- Quirks mode it had issues, but as it turns out, it works fine for this case at least.

I also hadn’t thought about the case of intrinsic event handlers.

Good points, thank you. :)

]]> By: kangax http://lea.verou.me/2009/02/check-if-a-css-property-is-supported/#comment-85 kangax Thu, 26 Mar 2009 03:50:29 +0000 http://leaverou.me/?p=3#comment-85 I would recommend to *always* use `document.documentElement` (i.e. HTML element) instead of `document.body` (for the exactly the reasons you mention), or explicitly create a dummy element, remembering to `null` it afterwords. `document.documentElement` is *always present* at the time of script execution, as long as browser implements DOM L1 (if I'm not mistaken). And, btw, SCRIPT element *can* be missing if script is executed as part of an intrinsic event handler ; ) <body onload="alert(document.getElementsByTagName('script')[0])"> ... </body> I would recommend to *always* use `document.documentElement` (i.e. HTML element) instead of `document.body` (for the exactly the reasons you mention), or explicitly create a dummy element, remembering to `null` it afterwords.

`document.documentElement` is *always present* at the time of script execution, as long as browser implements DOM L1 (if I’m not mistaken).

And, btw, SCRIPT element *can* be missing if script is executed as part of an intrinsic event handler ; )

<body onload=”alert(document.getElementsByTagName(‘script’)[0])”>
…
</body>

]]> By: Check whether the browser supports RGBA (and other CSS3 values) « Lea Verou http://lea.verou.me/2009/02/check-if-a-css-property-is-supported/#comment-15 Check whether the browser supports RGBA (and other CSS3 values) « Lea Verou Sun, 01 Mar 2009 14:45:27 +0000 http://leaverou.me/?p=3#comment-15 [...] since we can easily check whether the browser is RGBA-capable, almost as easily as we can check whether it suppports a given property. We can even follow the same technique to detect the support of other CSS3 values (for instance, [...] [...] since we can easily check whether the browser is RGBA-capable, almost as easily as we can check whether it suppports a given property. We can even follow the same technique to detect the support of other CSS3 values (for instance, [...]

]]> By: Things you should know when not using a JS library « Lea Verou http://lea.verou.me/2009/02/check-if-a-css-property-is-supported/#comment-7 Things you should know when not using a JS library « Lea Verou Sun, 22 Feb 2009 01:23:32 +0000 http://leaverou.me/?p=3#comment-7 [...] is an exception: It’s converted to cssFloat in most browsers and styleFloat in IE. Check which one exists and use [...] [...] is an exception: It’s converted to cssFloat in most browsers and styleFloat in IE. Check which one exists and use [...]

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