That moment the client asks to add a single link to a header and you think: "easy enough". But then you notice their CSS.
Not a single f*cking class is used in the entire header, everything is done using :nth-child selectors etc... 🤬

Also, did I mention, the CSS is used for several headers, so adding an element to the header and modifying the CSS might break any other header in the application.

And this after they mentioned last week that they don't use a library like Bootstrap because it is too cumbersome.

I'm so mad right now, have been trying to fix this for half an hour. A task like this shouldn't take more than five minutes!