Element block pseudo-class :active generated with box-shadow 1px 1px 1px rgba(0,0,0,0.3) box-sizing content-box border-radius text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid padding 20px height auto display block line-height 1 width 160px transition font-size 16px overflow hidden background position static cursor default margin 0px z-index auto font-weight normal float none transform