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