On the html side, grab a free template (quite a few sites out there offer nice ones). I find that it's easier to keep working when my project at least looks decent. Also, at least for me, I feel more comfortable showing it to friends for advice when there's some superficial polish.

Also, when you see something (a button, control or effect) on a site, open the source. A decent percent of the time you'll find it's actually open source already (lots of js frameworks out there) and you can just copy directly. If not, you'll still learn how it's done.

Good luck!