A Better API for the Resize Observer


ResizeObserver, MutationObserver, and IntersectionObserver enhance performance over their predecessors. Zell discusses their API similarities, usage steps, refactoring strategies, and advantages with practical examples. A Better API for the Resize Observer originally published on CSS-Tricks, which...

Breaking Boundaries: Building a Tangram Puzzle With (S)CSS


We put it to the test and it turns out Sass can replace JavaScript, at least when it comes to low-level logic and puzzle behavior. With nothing but maps, mixins, functions, and a whole lot of math, we managed to bring our Tangram puzzle to life, no JavaScript required. Breaking Boundaries:...

Developer Spotlight: Robin Payot


Creative Developer Robin Payot shares his journey, standout projects, and insights into WebGL, animation, and building award-winning interactive web experiences

Creating an Auto-Closing Notification With an HTML Popover


The HTML popover attribute transforms elements into top-layer elements that can be opened and closed with a button or JavaScript. Popovers can be dismissed a number of ways, but there is no option to auto-close them. Preethi has a technique you can use. Creating an Auto-Closing Notification With...

Better CSS Shapes Using shape() — Part 3: Curves


This is the third article in a series about the CSS shape() function. We've covered drawing lines and arcs in previous articles and, this time, we look specifically at the curve command and how to use it for drawing complex shapes. Better CSS Shapes Using shape() — Part 3: Curves originally...

Exploring the CSS contrast-color() Function… a Second Time


The contrast-color() function doesn’t check color contrast, but rather it outright resolves to either black or white (whichever one contrasts the most with your chosen color). Safari Technology Preview recently implemented it and we explore its possible uses in this article. Exploring...

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