MoreCSS is a fantastic Design oriented JavaScript library made by YellowGreen which offers a CSS coder lots of new possibilities inside the CSS file itself like creating popups, various effects and better properties control. And also, when you get used it ti, a real time saver! There's no new syntax to learn and no programming skills needed, file is really small - 6 KB core script (GZIP compressed, 12 KB uncompressed), cross-browser compatible for Internet Explorer 6+, Firefox 2+, Opera 9+, Safari 2+, valid W3C CSS...