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wtf is css-in-readme-like-wat?

yyx990803/css-in-readme-like-wat — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2020-07-24

10Audience · developerComplexity · 1/5DormantSetup · easy

TL;DR

A clever trick for styling GitHub READMEs with CSS by embedding it inside SVG images, letting plain markdown look visually polished.

Mindmap

mindmap
  root((repo))
    What it does
      Styles READMEs with CSS
      Uses SVG as a wrapper
      Renders inside markdown
    Tech stack
      SVG
      CSS
      Markdown
    Use cases
      Eye catching headers
      Styled feature lists
      Branded banners
    Audience
      Open source maintainers
      Designers
    Setup
      Create SVG with CSS
      Reference via image tag
      No design tools needed

Code map

Detail Auto

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filefunction / class

Why would anyone build with this?

REASON 1

Create a visually styled README header without design tools

REASON 2

Add custom fonts and colors to a project's feature list

REASON 3

Design a branded banner for a repository's landing page

REASON 4

Learn the SVG-plus-CSS trick for richer markdown presentation

What's in the stack?

SVGCSSMarkdown

How it stacks up

yyx990803/css-in-readme-like-wat0xbitx/dedsec_linx2winagi-ruby/ai-gpt_image2-seedance_2.0-video-skills
Stars101010
LanguageJavaScript
Last pushed2020-07-24
MaintenanceDormant
Setup difficultyeasyeasyeasy
Complexity1/52/51/5
Audiencedeveloperdevelopervibe coder

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 5min

Just requires basic SVG and CSS knowledge, no build tools.

Wtf does this do

This project shows a clever workaround for styling README files on GitHub using CSS. READMEs are normally just plain markdown with limited formatting options, but this repo demonstrates how you can use SVG files with embedded CSS to create visually styled content that displays beautifully in your documentation. The trick works by creating an SVG file (a vector graphics format) that contains CSS styling inside it. When GitHub renders your README and loads the SVG image, the browser interprets and applies that CSS, letting you add colors, fonts, layouts, and other visual polish that plain markdown can't achieve. You simply reference the SVG file in your README using a standard image tag, and it displays as styled content. This approach is useful for anyone who wants their project README to stand out visually without relying on external design tools or services. For example, you could create an eye-catching project header with custom fonts and colors, style your feature list with icons and backgrounds, or design a branded banner that greets visitors to your repository. It's especially helpful for open-source projects competing for attention or maintainers who want to present a more polished first impression. The technique is straightforward enough that you don't need deep design skills, you just need to know basic SVG and CSS syntax, both of which are widely documented. It's a creative, lightweight alternative to taking screenshots of designs or settling for plain text formatting. The project itself is quite minimal, essentially just an example showing the concept in action, but it opens the door to much richer README presentations while keeping everything version-controlled and text-based.

Yoink these prompts

Prompt 1
Show me an example SVG with embedded CSS I can use as a README header.
Prompt 2
Explain how GitHub renders CSS inside an SVG image in a markdown file.
Prompt 3
Help me style a feature list for my README using this SVG-CSS technique.
Prompt 4
Walk me through referencing this SVG file correctly in a README image tag.

Frequently asked questions

wtf is css-in-readme-like-wat?

A clever trick for styling GitHub READMEs with CSS by embedding it inside SVG images, letting plain markdown look visually polished.

Is css-in-readme-like-wat actively maintained?

Dormant — no commits in 2+ years (last push 2020-07-24).

How hard is css-in-readme-like-wat to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is css-in-readme-like-wat for?

Mainly developer.

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