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