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