Steps to reproduce:
1. log in to a pagure instance, e.g. this one (https://pagure.io/) or Fedora's instance (https://src.fedoraproject.org/)
2. go to the home page (same URL, but after login)
3. display this page on a relatively narrow device or a narrow browser window (less than 1200px wide)

What happens:
In the "Activity" box, the activity log is larger than the box itself overlapping with right side boxes. See attached screenshot for an example width of 988px.

What should happen:
Do not overlap other content. If there is not enough space to display the box correctly, line-break it or show all months below each other instead of beside each other.

Affected version:
Instance on pagure.io and src.fedoraproject.org (both claim to be 3.10.1).