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

Creating a website using div elements and CSS for structure is the norm -- it offers a more lightweight solution than tables by using significantly less code. This reduces the size of your pages, and ...

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 ...

I'm working on a web app with some dynamic forms, that show certain fields based on different form selection choices and different button combinations. Up until now, I had been designing those ...

No two ways about it – overlapping text is bad. When text overlaps on a page, it's confusing and can make the page entirely unreadable. If the visitor can't read a page, they're not going to stay. If ...