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