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14 ratings

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Debug your layouts with one line of CSS and a single click.

This extension injects simple-debug.css's one line of CSS into the current page, adding outlines and a sense of depth to the page's elements, to make debugging the page layout easier.

4.7 out of 514 ratings

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Guy McAuliffeJul 27, 2022

Great plugin. Simple but very helpful!

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NatMay 23, 2021

Super simple, but does exactly what I expect from it. Thanks!

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ShaniceNov 15, 2020

Every debug extension in the web store does not work. I've tried allowing access and no luck. Not sure if they're in need of an update or not, but there should be a small guide for troubleshooting.

1 person found this review to be unhelpful


  • Version
  • Updated
    January 23, 2015
  • Size
  • Languages
    English (United States)
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has not provided any information about the collection or usage of your data.


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