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