Bug in github action presentation page

[prescientmoon]

Describe the bug:
The github actions presentation page contains a big white square

Expected behavior:
The github actions presentation page should not contain a big white rectangle

Where did this happen:
https://github.com/features/actions

Steps to reproduce:
Navigate to https://github.com/features/actions

Desktop (please complete the following information):

• OS: Nixos 19
• Browser: Chrome
• Version: latest