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