Description of problem:

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

 # <steps>

Actual results:

Focus ring of card header links (e.g., obc, Create a Spring Boot Backend...) is not that visible and it's not visually clear when I have focus on the element

Expected results:

Colour of link changes or a focus ring appears

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Additional info (Such as Logs, Screenshots, etc):