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