Edit fiddle - JSFiddle - Code Playground

A few HTML tips – Mozilla Hacks - the Web developer blog

A while ago I wrote an article with some CSS tips, now it’s time to give some polish to our HTML! In this article I’ll share some tips and advice ...

CSS Anchor Positioning Guide | CSS-Tricks

Learn about CSS Anchor Positioning, including its syntax, properties, how it is used to position one element next to another, and even how it's used to resize elements relative to other elements.

Modern CSS snippets. Every old hack, replaced.

Side-by-side comparisons of outdated CSS techniques and their modern native replacements. Grid, custom properties, nesting, container queries, and more.

Modern CSS snippets. Every old hack, replaced.

Side-by-side comparisons of outdated CSS techniques and their modern native replacements. Grid, custom properties, nesting, container queries, and more.

HTML Can Do That

HTML has been gobbling up swathes of what used to be JavaScript’s remit. This page lists a bunch of dynamic functionality that we can now achieve with just HTML.

HTML Can Do That

HTML has been gobbling up swathes of what used to be JavaScript’s remit. This page lists a bunch of dynamic functionality that we can now achieve with just HTML.

Make accessible carousels  |  Blog  |  Chrome for Developers

How the features in CSS Overflow 5 can help you create more accessible carousel patterns.

NoJS 3 - The dawn of Flappy Bird. Making a Flappy Bird clone using pure HTML and CSS, no JavaScript

Everyone loves CSS! Apparently, I have little better to do with my life. I have created a clone of the lesser-known game Flappy Bird. This was made without any JavaScript—only HTML and CSS. In this blog post, I discuss how I made it.

CSS Generators: Your CSS code with less effort

A wide range of CSS Generators to build the future of the web. Add your setting, get your CSS code.

New in Chrome 150  |  Blog  |  Chrome for Developers

CSS text-fit property, Focusgroup declarative keyboard navigation, and CSS background-clip border-area.

CSS does your tooltip positioning now - Matt Smith

CSS can now handle tooltip and dropdown positioning without JavaScript. Learn how anchor positioning, popovers, and anchor-size() simplify UI.

Carousels with CSS  |  Blog  |  Chrome for Developers

Support scroll experiences with navigation buttons and markers with just a few lines of CSS.

Prop For That · June 13, 2026

Everything JS knows, now CSS knows.

Put aria-hidden=true on decorative SVGs - Manuel Matuzovic

I'm a frontend developer in Graz, specialized in HTML, accessibility, and CSS layout and architecture.

The n-Category Café

Note:These pages make extensive use of the latest XHTML and CSS Standards. They ought to look great in any standards-compliant modern browser. Unfortunately, they will probably look horrible in older browsers, like Netscape 4.x and IE 4.x. Moreover, many posts use MathML, which is, currently only supported in Mozilla. My best suggestion (and you will thank me when surfing an ever-increasing number of sites on the web which have been crafted to use the new standards) is to upgrade to the latest version of your browser. If that's not possible, consider moving to the Standards-compliant and open-source Mozilla browser.