Element block pseudo-class :active generated with box-sizing content-box position static transition overflow hidden height auto float none border 0px rgba(0,0,0,1) solid line-height 1 box-shadow 1px 1px 4px rgba(0,0,0,0.2) cursor default padding 20px font-weight normal width 160px z-index auto margin 0px background display block border-radius font-size 16px transform text-shadow 1px 1px 1px rgba(0,0,0,0.2)