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