for learning CSS, start with the basics tutorials http://www.w3schools.com/css/default.asp http://www.w3schools.com/css/default.asp try to create a couple of p

for learning CSS, start with the basics tutorials http://www.w3schools.com/css/default.asp http://www.w3schools.com/css/default.asp try to create a couple of pages, try a CSS framework like blueprint. your next step would be trying to customize the CSS of a wordpress template. play with background colors, font colors, change the layout of elements. as always, constant practice makes perfect. UI design on the other hand is something completely different (although you need to know CSS/HTML and javascript to do it). read the online book designinginterfaces.com, the 37Signals blog, try to change the structure and layout of a blog template. you will find it hard and the first few tries won't be pleasant to see, but if you keep doing it for a few months, then you will be actually be able to do UI design.