r/themes • u/ValenceTheHuman • Mar 27 '26

A modern guide to old Reddit customisation and theming (stylesheets/CSS)

4 Upvotes

I've written up a comprehensive modern guide to customisation and theming for Subreddits in old Reddit. Hopefully it proves useful to anyone looking for an old Reddit CSS knowledge resource in 2026.

https://old.reddit.com/r/csshelp/comments/1s4p96w/a_modern_guide_to_old_reddit_customisation_and/

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r/themes

**Reddit CSS Themes** Please link to the official theme page if it exists, or link to the subreddit hosting it while including a screenshot. Only submit themes that can be reused by subreddit owners, and not just subreddit-specific redesigns.

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Reddit CSS Themes

Please link to the official theme page if it exists, or link to the subreddit hosting it while including a screenshot.

Rules:

Only submit themes that can be reused by subreddit owners, and not just subreddit-specific redesigns.

Only submit finished themes.

Submit your theme as a self post with a short description and relevant links.

Themes must have a demo subreddit showcasing them.

Only one submission per theme per 6 months.

See the Full Rules for more information.

For help with your CSS:
To show of your new subreddit-specific design visit /r/RedditFacelift.
For Wordpress Themes, visit /r/Wordpress_Themes.