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