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