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