Styleinject – Custom Css
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Overview
StyleInject lets you write custom CSS rules for any website and have them automatically injected on every visit. Create per-domain rules using simple glob patterns — example.com, *.example.com, or * for all pages. Changes apply live as you type, with a real-time preview before saving. Built-in CSS editor features syntax highlighting, line numbers, auto-formatting, and 12 ready-made snippets for common tasks like hiding cookie banners, widening reading columns, or applying dark mode. Rules can be toggled on/off individually or all at once. Export and import your rule library as JSON.
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Privacy Practices
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Not being sold to third parties, outside of the approved use cases
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Not being used or transferred for purposes that are unrelated to the item's core functionality
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Not being used or transferred to determine creditworthiness or for lending purposes
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