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