Custom Style Script
Developer Tools
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
Users
10K
Rating
4.2
Reviews
42
7D Growth
0|0%
Stable signalUnknownMedium-risk permissions
Custom CSS by Denis
Minimal and secure way to add custom CSS per-domain
Users20KCurrent public install base
Rating4.5Store average score
Reviews79Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
2 assetsCustom CSS by Denis Media preview
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7-day rating change
Start
4.54
Latest
4.54
7-day rating change
0.00
2026年7月14日2026年7月20日
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Version1.4.0
ManifestV3
Size159KiB
Languages2English / 한국어
Published
Store updated
Last crawled
English한국어
Overview
Product summary
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Add custom CSS styles on websites. Allows to select elements based on text contents.
The extension does not require permissions to access all data on all websites all the time. Once you start editing CSS on a page, you get a permission prompt specific to that domain. Later, if the CSS for a domain is not used, the permission will be dropped.
There is no UI clutter of any kind. The entire extension consists of a big editable area for CSS code for the current domain.
Reviews
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Store average score4.5Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.4Average computed only from synced review bodies below
Reviews with text64Synced review bodies
Total ratings / reviews79Chrome Web Store public rating/review count
Store average score: 4.5. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Great extension. Been using for months and have had no issues. Simple and does what you expect. Thanks. One request: possible to get the styles to be applied to an iframe of the same domain? Currently the styles only get applied to the parent window. Using a Javascript extension similar to this one to inject the styles into the iframe.
Exactly what an extension like this should be. Simple, local, open source, and works perfectly with no fuss and no login/account or "pro" version needed.
Works like a charm, super simple. Recommended!
Simple and just works, perfect.
Ну Денчик ты дал, красава, могеш)
Absolutely fantastic for handling all the annoying sites that refuse to supply a proper dark mode.
여느 custom css 익스텐션 중에 가장 직관적이고 사용하기 편리하네요
Сентябрь 2024 года. В яндекс-браузере хорошо работает.
Works like charm! If you need some minor fixes in your day to day web apps, it's just what you need.
I use this on a number of sites to improve their UI as I see fit. In the extension description, can you please explain the character limit? I have a site where the character count is 7581, and I'm not sure what effect that has. Edit: I see now that it does not save changes after 7500 characters. The styles will appear for the current page, but the new edits will not appear on the next page load.