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