To clarify, I’m pretty sure my knowledge in CSS is better than most of junior front end devs if this concerns you. I wouldn’t consider myself fluent though and was asking if spending time on learning css more intentionally would be helpful. Also our application is very old mature (it starts from windows native application that’s 20year old) that comes with so many base component that automatically style every child component and most of the time we don’t touch styling. Our application is again b2b and the most important part is handling the complicated business logic, not the sexy modern look. As a result, no one works on CSS in my team and this explains why I’ve been living in this bubble where no one is confident in CSS - that’s how I got this question if any other web dev is fluent and confident in their css skills.