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