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