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The process of a web browser turning HTML, CSS, and JavaScript into a finished visual representation is quite complex and involves a good bit of magic. Here’s a simplified set of steps the browser goes through:

1. Browser creates the DOM and CSSOM.
2. Browser creates the render tree, where the DOM and styles from the CSSOM are taken into account (display: none elements are avoided).
3. Browser computes the geometry of the layout and its elements based on the render tree.

…

The post Browser painting and considerations for web performance appeared first on CSS-Tricks.

The web has grown bigger. Both in expansiveness and weight. Nick Heer’s “The Bullshit Web”:

The average internet connection in the United States is about six times as fast as it was just ten years ago, but instead of making it faster to browse the same types of websites, we’re simply occupying that extra bandwidth with more stuff.

Nick clearly explains what he means by bullshit, and one can see a connection to Brad Frost’s similarly framed …

The post Slow Websites appeared first on CSS-Tricks.

Just like the title says! Here’s a sidebar navigation bar that…

1. Uses sticky positioning. It stays on the screen when it can, but won’t overlap the header, footer, or ever make any of it’s links inaccessible.
2. Scrolls smoothly to the sections you click to.
3. Activates the current nav based on scroll position (it’s a single page thing).

See the Pen Sticky, Smooth, Active Nav by Chris Coyier (@chriscoyier) on CodePen.

Sticky

It’s easy to toss position: sticky; …

The post Sticky, Smooth, Active Nav appeared first on CSS-Tricks.