Deceptive patterns are tricks websites use to deceive you into doing something you didn't mean to, usually involving a product or service the site is offering.
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.