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