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