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