extension ExtPose


CRX id


Description from extension meta

a11y.css provides warnings about possible risks and mistakes that exist in HTML.

Image from store a11y.css
Description from store First a11y.css was a bookmarklet inserting a stylesheet into the page. This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external stylesheet. This extension does the same, plus adds some tools: — Outline focus (keyboard navigation) — Show languages used (relies on lang attributes) —Check alt and title attributes on images You can submit your bugs on github. Original bookmarklet code: Gaël Poupard Extension code: Stéphane Deschamps Thanks to Anthony Ricaud and Mathieu Pillard for their help!

Latest reviews

  • (2021-03-06) Paul Stoute: This is a great effort and it tackles a good amount of details that are commonly missed but it doesn't (from our testing) account for color contrast issues and other commonly found issues when doing audits.
  • (2020-10-06) Maria Parfenyuk: Didn't work


1,268 history
2.5 (2 votes)
Last update / version
2021-04-04 / 1.2.0
Listing languages