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