ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Languages & runtimes · #html5
An architecture note covering requirements, minimal design, trust boundaries, operational checks, and failure‑mode fallbacks for using HTML5 Canvas in client‑side graphics.
Stop fighting z-index wars. Learn when to use the native HTML5 <dialog> element versus custom div-based modals, including implementation patterns for focus trapping and top-layer rendering.
Learn how to add subtitles to an HTML5 video using the <track> element and WebVTT, with a working code sample, browser checks and common pitfalls.
A decision guide comparing localStorage, sessionStorage, and IndexedDB for HTML5 apps, with a concrete IndexedDB caching example and validation steps.
The details and summary elements give you a working accordion with no JavaScript, real keyboard support, and an inspectable open attribute. Here's how to style it — and where it stops.
Learn how the HTML5 <picture> element lets you serve different images based on viewport size or pixel density, improving performance and visual focus while providing a reliable fallback.
Step‑by‑step guide to create an HTML5 video player that selects the best source, provides controls, shows a poster, handles errors, and falls back to a download link.
Learn how HTML5 Custom Elements let you create reusable, framework-free UI tags that encapsulate markup, style, and behavior, with a worked counter example and notes on style scoping and browser support.
The <picture> element lets browsers pick the best image file for each device, cutting bandwidth and speeding up load times. Learn how to implement it, test it, and weigh its trade‑offs in this practical guide.