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