The following example shows how all of the elements in a document inherit the text-underline-position style rule from the parent HTML element. Underline decorations throughout the document are positioned above the text, relative to the layout of the text.
This horizontal SPAN element is not underlined. This horizontal SPAN element has an underline decoration positioned above the text.
This vertical SPAN element is not underlined. This vertical SPAN element has an underline decoration positioned above the text.