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