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