Parallax scrolling has been popular for some years now. Watch the nearer clouds scroll faster than the ones in the distance! But the technique has its uses.
The performance of your site – the speed with which it loads and responds to user actions – is crucial to its success. There's a lot you can do to improve this.
The SASS preprocessor promises to take much of the grunt work out of developing CSS. Lengthy, repetitive spriting code would especially benefit from this.
For at least a decade, browser detection has gotten a bad rap. "Test for the browser's capabilities, not the browser itself," we're repeatedly told. But there are times when nothing else will do.