Element block pseudo-class :active generated with overflow hidden font-size 16px box-sizing content-box line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) transition border 2px rgba(0,0,0,1) solid position static height auto background display block z-index auto cursor default width 160px font-weight normal float none padding 20px transform border-radius margin 0px box-shadow 1px 1px 1px rgba(0,0,0,0.3)