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