Contribution Graph requires horizontal scrolling on Profile page

[koleajeolayinka]

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Bug

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The Contribution Calendar component on the GitHub Profile page lacks proper horizontal responsiveness. Instead of scaling to fit the viewport, the heatmap container overflows, forcing a horizontal scroll to view the full 12-month activity grid. This breaks the "at-a-glance" user experience intended for the profile summary.

Steps to Reproduce:

1. Navigate to a GitHub Profile page.
2. Scroll to the "Contributions in the last year" section.
3. Observe that the grid is cut off, requiring a horizontal scroll to see the beginning or end of the year.

Expected Behavior:
The contribution heatmap should be fluid or responsive, ensuring the entire 12-month grid remains visible within the page width without requiring a scrollbar.

Actual Behavior:
The grid appears to have a fixed or semi-fixed width that does not adapt to standard laptop or desktop resolutions, leading to a broken layout and poor visibility.

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[febog]

I got this problem as well this week. I found this post while searching for the problem online. +1 on all the information provided by the OP.

Other things that I found related to this:

• Seems to happen only when logged in into GitHub, in other words, the bug sometimes disappears when a profile is looked at from an incognito window.
• It doesn't happen in all user profiles.
• Seems to be related to the year selection menu placement. When it is below the contribution graph, the graph doesn't scroll horizontally (as expected). When it is to the side of the contribution graph, it shows the scrolling bug.

[koleajeolayinka]

just checked my profile again and the layout seems to be back to normal now! It looks like the issue has been resolved.

@febog thanks for the extra details, and kudos to the GitHub team for getting this fixed so quickly

[febog]

I just took a look, and I can confirm that this seems fixed on my end as well.

Thank you @koleajeolayinka for the update!