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