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