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