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