JavaScript is the second-largest contributor to page weight, behind images, which means it can play a major role in slowing down the speed of your mobile site. Here's how you can reduce your reliance ...

This text-based tutorial is intended for people who learn fast through a combination of reading and images — it’s possible to learn HTML and CSS foundations in 15 minutes through this tutorial. For a ...

Google announced they’ve updated their webmaster guidelines to specifically note that blocking your CSS or JavaScript files may have a negative impact on your indexing and search rankings in Google.

Leenheer is best known for creating HTML5test.com, the WhichBrowser user-agent parser. He began exploring a CSS-based Doom ...