[z3t4]

If you are not good at the CSS basics, then learn the CSS basics, for example where in the CSS file you should place something for it to override something else. Then read through the CSS spec. there are a lot of nice new features like border-radius, linear-gradient, box-sizing, and finally display: inline-block is now a standard feature! Then there are animations and SVG support! You can make a lot with just CSS now a days, no need for JavaScript. Speaking of JavaScript a lot of back-end stuff has now moved to the front-end. You can now have the database on the client side. And you can develop a web app like if it where an off-line native app, blurring the lines of what a "native" app is, as users doesn't have to notice a difference.