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