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