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