Assume your CSS looks like:
color: rgb(255, 0, 0);
To retrieve the color property of the
var color = window.getComputedStyle(
Passing the pseudo-element as the second argument to
window.getComputedStyle allows access to said pseudo-element styles! Keep this snippet in your toolbox for years to come -- pseudo-elements will only grow more useful with broader browser support!
My trip to Mozilla Summit 2013 was incredible. I've spent so much time focusing on my project that I had lost sight of all of the great work Mozillians were putting out. MozSummit provided the perfect reminder of how brilliant my colleagues are and how much...
My team mate Edna Piranha is not only an awesome hacker; she's also a fantastic philosopher! Communication and online interactions is a subject that has kept her mind busy for a long time, and it has also resulted in a bunch of interesting experimental projects...
Without a doubt, my least favorite form element is the
SELECT element. The element is almost unstylable, looks different across platforms, has had inconsistent value access, and disaster that is the result of
multiple=true is, well, a disaster. Needless to say, whenever a developer goes...
Responsive web design is something you hear a lot about these days. The moment I really started to get into responsive design was a few months ago when I started to realise that 'responsive' is not just about scaling your websites to the size of your...
Yeah, too bad this doesn’t work with IE8 and previous.
currentStyle is good for some things, but… not for this one.
By the way, I forgot to say that it’s usually recommended to use document.defaultView.getComputedStyle instead of window.getComputedStyle, because there are cases where document.defaultView !== window.
I don’t know which ones, though. I guess it’s not the case of “common” web pages.