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