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