fix(website): CSS of jest card

[ony3000]

Summary

At some point, the elements on the back of the jest cards on the website's main page started to overlap on the front. When I first saw it, I didn't really care. Because it was a problem with the website's main page, I thought it would be fixed soon. But it seems to have been left in that state for several months, so I fix it myself and send this PR.

Test plan

Please check in the Chrome browser.

Before:

After:

[codecov-commenter]

Codecov Report

Merging #12127 (83425de) into main (3093c18) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main   #12127   +/-   ##
=======================================
  Coverage   67.71%   67.71%           
=======================================
  Files         328      328           
  Lines       16990    16990           
  Branches     4817     4817           
=======================================
  Hits        11505    11505           
  Misses       5452     5452           
  Partials       33       33           

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[orta]

Strange, I wonder what changed - works fine in safari/edge for me right now.

Regardless, the change looks harmless if it's already working 👍🏻

[github-actions]

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