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