There is a range of fancy stuff you can do with HTML and CSS but a lot of developers are not aware of the little tricks you can do with CSS which results in developers using alternatives such as JavaScript or PHP when CSS can achieve the same results, sometimes even better as its less code to be written and downloaded by the client.

Time after time I notice websites which have used JavaScript to achieve something like a menu when most of the time simple CSS selectors such as :hover could have been used resulting in a 100% CSS menu which works the same.

Here is a must read article which outlines some of those hidden CSS selectors which make development a lot easier and faster. Did you know you could use regular expressions in CSS as I didn’t.

http://net.tutsplus.com/tutorials/html-css-techniques/the-30-css-selectors-you-must-memorize/