Can someone explain the purpose of this code snippet? My assumption is that it could be a browser hack, but I haven't been able to decipher its exact function.
width: 500px\9;
Is there any specific reason for using \9 in this context?
Can someone explain the purpose of this code snippet? My assumption is that it could be a browser hack, but I haven't been able to decipher its exact function.
width: 500px\9;
Is there any specific reason for using \9 in this context?
\9 serves as a CSS trick specifically tailored for Internet Explorer versions 7, 8, and 9.
In essence, utilizing \9; at the end of a CSS line instead of the standard ; signifies that the style rule will only be recognized by IE 7, 8, and 9.
For instance,
width: 500px\9; indicates that a width of 500 pixels (equivalent to width: 500px;) will only take effect when viewed in IE 7, 8, and 9.
All other web browsers will disregard width: 500px\9; completely, resulting in the element not adopting the style specified by width: 500px;.
If your CSS code resembled this...
#myElement {
width: 300px;
width: 500px\9;
}
The outcome would entail #myElement spanning 500 pixels in IE 7, 8, and 9, while in alternative browsers, it would maintain a width of 300 pixels only.
UPDATE:
This response originally penned in 2011 should acknowledge that this workaround is also functional in IE 10.
If you need to target specific versions of IE, consider using this CSS hack:
width: 500px\9;
For more information on personal CSS hacks for older versions of Internet Explorer, check out this article.
If you're using IE9, you can apply this workaround to adjust the width property:
For example:
.align {
float:left;
margin:5px;
background-color:blue;
width:65px;
width:\9 !important;
}
Trick to Style IE9 with CSS
/* Special CSS Trick for IE9 */
.ie9csshack {color:#f00\9\0\;}
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