Element block pseudo-class :active generated with box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) transition transform border-radius margin 6px height auto display block line-height 1 padding 20px overflow hidden border 0px rgba(0,0,0,1) solid font-weight normal position static opacity 1 z-index auto float none width 160px outline none box-shadow 1px 1px 1px rgba(0,0,0,0.3) cursor default background font-size 16px