Do you have one particular favorite CSS tool that you use online most often? Can you share a screencap or link?
If you're stuck on where to start with CSS, you might try to modify the CSS file for another site; breaking it apart and looking at the elements, changing some things out. This could be a good way to learn more about CS...
Do you have a sample of an HTML project that you built from scratch? Please show a sample, along with screenshots/links, etc.