A lot of what I do is updates here and there among different clients. Mostly I fix minor syntax errors, update pages to work more consistently across browsers, or add content.
I use css and html a lot. I know them well enough that I wouldn't hesitate to take on any project requiring them. I enjoy php a lot, but I have more to learn before discussing it as more than a hobby.
I'm able to write standards compliant code, and I do by habit.