Indicates the style of underline to be used on display or in print, for example, “single”, “double”, or “dash”
| Value | Meaning |
|---|---|
| blank | Underline character as an underline, to create a fill-in-the-blank style |
| bold | Underline in bold. |
| dash | Use a dashed underline. |
| dot | Use a dotted underline. |
| double | Use a double underline.X |
| none | No underline at all |
| single | Use a single underline. |
| triple | Use a triple underline. |
| Default value: single | |