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