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