Substack: hide the right author sidebar
Hides the side column with the author bio and share buttons; the article expands to the centre.
Code to copy
/* Hide the right-hand author bio + share-link sidebar on a post */
.post-meta-sidebar,
.right-sidebar,
[class*="postSidebar"],
[class*="rightRail"],
article aside,
.single-post aside {
display: none !important;
}
/* Let the article take the freed width */
.single-post .container,
.post .container,
.single-post article {
max-width: 760px !important;
margin-left: auto !important;
margin-right: 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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