Neon Lights:
“Honestly, if you don't want to learn HTML/CSS, unless it's a really simple project, it'll probably be best to draw up your designs and team up with someone who knows it.”
Of course that's an option... But I guess it's a bit like hiring a chauffeur;
you only do so if you're well situated. (And then again, some of us
prefers being the driver rather than being passenger)

What I'll do next, is to begin developing my first website; then I could
post a link here for feedback from more experienced web-designers.
I'm thinking a basic Ubuntu fan-page could be a nice little project to begin with.

Thanks for the link to w3schools! I'll definitively have a look at it!