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This article will show you how to create nifty physics-based background scroll effects for your web pages. We’ll be using Matter.js, an excellent open-source JavaScript framework, to handle the physics for us. The Game PlanLet’s get right to it. Here’s the first demo. Scroll it and watch the background. Notice the bubbles don’t have a fixed path as you scroll. They float around, bump into each oth

I haven’t been this excited about a new browser tech in a long time. Houdini is an ambitious project to give developers more power over CSS than we’ve ever had before. The first piece of this project to emerge is the CSS Paint API. This article will explain why Houdini is so exciting, then show you how to get started with the Paint API. The Classic DisappointmentHow many times have you heard about

Checkboxes are great. Combine them with the right CSS and you can pull off some really neat tricks. This article aims to showcase some of the creative things you can do with checkboxes. Read on and keep in mind that the demos in this article use no JavaScript. The Basic FormulaIt all starts with the HTML. <input id="toggle" type="checkbox"> <label for="toggle">Nothing tricky there. The for attribu

CSS counters are one of those “oh neat, didn’t know CSS could do that” features with a lot of interesting potential. In simple terms, they let you keep a running tally of things in CSS — no JavaScript needed. Basic CounterHere’s an easy pagination example to get us started: The numbers you see aren’t hardcoded in HTML. They’re generated in CSS with this: body { counter-reset: pages; /* initialize