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