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