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