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