Substack: larger code block font
Enlarges the font and improves contrast in code blocks so they read well in long technical posts.
Code to copy
/* Larger, friendlier code-block typography */
.body.markup pre,
.body.markup code,
.available-content pre,
.available-content code,
[class*="postBody"] pre {
font-family: 'JetBrains Mono', 'Fira Code', Menlo, Consolas, monospace !important;
font-size: 15px !important;
line-height: 1.55 !important;
}
.body.markup pre {
padding: 14px 16px !important;
border-radius: 8px !important;
background: #1f2228 !important;
color: #e6e9ef !important;
overflow-x: auto !important;
}How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Paste the code into the rule's CSS panel and save — the effect appears instantly.
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