text-decoration
Defines any decoration for the text; values may be combined.
Usage:
style="text-decoration: blink|line-through|none|overline|underline;"
NOTES:
Using the value none will override all other values
used in the current list of text-decoration values.
Even though the blink HTML tag will not work when used
in e-mail, the blink value seems to work in some mail
clients. More research would ordinarily be indicated, except for
the fact that the blink tag was one of the most
annoying things about HTML 4.0.