[Technical bug] - Remove borders from images

[orizohar]

URL (on blog.dapr.io)

https://blog.dapr.io/posts/2021/02/09/running-dapr-in-production-at-roadwork/

Expected Behavior

No border around the Roadwork logo

Actual Behavior

There is a gray border around the image

Steps to Reproduce the Problem

Additional information

Should be some override we add in the CSS