Issue #425

September 2, 2020

How Fast Should Your Site Load?

David East gives an in-depth overview of different performance metrics.

Short Note on content-visibility: hidden

Steve Faulkner explores how is the new content-visibility property exposed to screen readers and other assistive technology that make use of the content information represented in the browser accessibility tree.

How to Use AVIF: The New Next-Gen Image Compression Format

Dan Klammer gives an overview of AVIF, a new super-compressed image type.

Use Advanced Typography With Local Fonts

Thomas Steiner explains how the Local Font Access API allows you to access the user’s locally installed fonts and obtain low-level details about them.

Here’s How I Solved a Weird Bug Using Tried and True Debugging Strategies

Adrian Bece outlines some useful debugging strategies while demonstrating how to solve a weird bug.

Ground Rules for Web Animations

Prasanjit Singh digs into animations on the web and lays down some ground rules for working with them.

Why CSS ::before Doesn’t Work on Inputs and Images

Šime Vidas explains that the CSS ::before and ::after pseudo-elements cannot be added to text inputs and images because these elements are “replaced elements,” a special category defined in the Rendering section of the HTML Standard.

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