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