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