[webkit-help] How to change background-repeat-x CSS property ?

[Simon Fraser]

There is no background-repeat-x CSS property <http://dev.w3.org/csswg/css3-background/>. Background-repeat is one of those properties with X, Y values that sound like they should be shorthands, but actually are not. The CSS WG has talked a few times about whether it's useful to expose separate properties for the -x and -y values, but in general we tend to avoid adding new CSS properties.

Simon

On Sep 26, 2012, at 6:33 AM, Nicolas Ramz wrote:

> Hi,
> 
> When playing with Style rules I have accountered a weird behaviour.
> 
> Let's say I have a single stylesheet. I may access it using document.styleSheets[0] and I can access the first rule using document.styleSheets[0].rules[0]
> 
> Now, if the first rule equals to something like: "body{ width:100%; height: 100%; background-repeat: no-repeat; }", it seems internally, background-repeat is splited into two separate properties: background-repeat-x and background-repeat-y
> 
> That sounds ok (even though I couldn't find anywhere a reference to the background-repeat-x/y properties: are they standard CSS ?). The problem is it isn't possible to set this values.
> 
> Doing something like: myRule.style.setProperty('background-repeat-x', 'repeat') won't work.
> 
> I know I may use the shorthand (valid) CSS property background-repeat to set my properties but I'm wondering: why is background-repeat property split like this ? It makes it impossible to iterate through all styles since there's no way to set background-repeat-x/y values.
> 
> 
> Thanks,
> -- 
> Nicolas RAMZ
> Développeur Web
> www.warpdesign.fr | @warpdesign_ | www.wpfun.fr
> nicolas.ramz at gmail.com | +33 6 43 34 73 47
> 
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