Element block pseudo-class :active generated with background width 80% box-sizing content-box padding 20px margin auto height auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) float none display block font-size 16px line-height 1 position static cursor default overflow hidden border 1px rgba(0,0,0,1) solid transform border-radius z-index auto font-weight normal box-shadow 1px 1px 1px rgba(0,0,0,0.3) transition