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