Tab container with many items looks off

[jonasraoni]

Describe the bug
When the tab container has many items, the design looks off, given that the original idea was probably to keep the active menu background color connected to the container's background.

To Reproduce

1. Go to Distribution > Payments
2. Enable the payments and save
3. Access the menu Payments

What application are you using?
OJS 3.3

Additional information