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