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Site styles
Can I keep a CSS fix for one site and have it come back?
This is the one thing in the panel that is deliberately not ephemeral. A stylesheet you wrote for a site is a standing choice about that site rather than a mode or an edit, so it is stored per origin, applied in the controller’s constructor before anything else, and left standing by the reset that clears every overlay.
Reach itPress ⌘+K on any tab and type site styles.Ctrl+Kon Windows and Linux

TWO BUILDS9 browsers
Chromelisting in reviewFirefoxlisting in reviewBravelisting in reviewOperalisting in reviewEdgelisting in review4 moreChromium browsers: Arc, Vivaldi, Chromium, Opera GXthe Chrome buildin the panel · free, no counter
What this actually is
a stylesheet you write for one site, kept and re-appliedFor the sticky header that covers the thing you are reading, the site whose line height is unusable, or a staging environment that needs a visible banner. Also for temporarily hiding a component while you photograph a page.
Asked about this tool
4 of themWhy is the style element last in the head?
Because that is what lets an override of equal specificity win without `!important`. Putting it in the body or in a shadow root would change how the cascade resolves it.
What gets stripped out of my CSS?
`@import` and any off-site `url()`. The first would make the page fetch a stylesheet it never asked for; the second would make it fetch an image. The panel says which it removed rather than doing it quietly.
Does Clear LoupeKit changes remove it?
No, and that is deliberate. Every overlay and every live edit goes; the site stylesheet stands, because it is a decision about the site rather than something you were doing to the page just now.
Is it stored per page or per site?
Per origin, with a cap and least-recently-written eviction - so the store cannot grow into a record of where you have been.
TWO BUILDS9 browsers
Chromelisting in reviewFirefoxlisting in reviewBravelisting in reviewOperalisting in reviewEdgelisting in review4 moreChromium browsers: Arc, Vivaldi, Chromium, Opera GXthe Chrome build63 of these · no host permissions · three free audits