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