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