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