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