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