I'd go so far as to say that the only really difficult thing on the technical side of web design is working round the millions of bugs in IE (and occasionally the odd one in other browsers). That's usually where over half my coding time is spent on a new site, client-side.
Comments
http://www.quirksmode.org/ is pretty good for what you can do with a particular browser and realize its limitations.
Also http://www.positioniseverything.net/
I'd go so far as to say that the only really difficult thing on the technical side of web design is working round the millions of bugs in IE (and occasionally the odd one in other browsers). That's usually where over half my coding time is spent on a new site, client-side.