CSS3 is cool. It's animation and 3D stuff are amazing. But things like rounded corner and gradients are the most useful. I am listing down few tricks that I use often for my own quick reference. Gradient No more slicing.. and repeating images to make shaded backgrounds. background-image: -webkit-gradient(linear, left top, left bottom, from(#6f6f6f), to(#000000)); /* mozilla - FF3.6+ */ background-image: -moz-linear-gradient(top, #6f6f6f 0%, #000000 100%); /* IE 5.5 - 7 */ filter:progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr='#6f6f6f',EndColorStr='#000000'); /* IE8 */ -ms-filter: progid: DXImageTransform . Microsoft . gradient(gradientType = 0, startColor = '#CCCCCC', endColoStr = '#000000'); /*Transparent back */ Shadows. Rounded Corner, and Transparent Layers. I like to give a div a transparent background and put some kind of a background image under it. Drop the shadow from that box make it look much nice.. ...