DiagnostiCSS

Diagnostic CSS stylesheet that helps visually detect any potentially invalid, inaccessible or erroneous HTML markup.

DiagnostiCSS - Chrome Extension for Visual HTML Markup Diagnostics

DiagnostiCSS is a Chrome extension called DiagnostiCSS that helps visually detect invalid, inaccessible or erroneous HTML markup. It highlights inline styles and event attributes, invalid links, empty or deprecated elements, and elements missing required attributes.
Install from Chrome Web Store

Extension stats

Users: 257
-12
Rating: 4.00
(4)
Version: 0.0.3 (Last updated: 2013-10-05)
Creation date: 2013-10-05
Risk impact: Moderate risk impact
Risk likelihood:
Manifest version: 2
Permissions:
  • activeTab
  • http://diagnosticss.github.io/css/diagnosticss.css
Size: 22.75K
URLs: Website

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge
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Extension summary

DiagnostiCSS highlights the following problems:

  • inline styles and event attributes
  • invalid links
  • empty or deprecated elements
  • elements missing required attributes

User reviews

I like the concept, but I rarely know why it's highlighting elements? All I see is the coloured borders, with no explanation of why they are the colour they are? is there a key somewhere that I've missed?
by Matthew Clark, 2013-11-06
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Extension safety

Risk impact

DiagnostiCSS requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

DiagnostiCSS has earned a fairly good reputation and likely can be trusted.

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