A:link
{ text-decoration: value; [underline, overline, underline overline, line-through, blink, none] color:#000000; }
A:visited
{ text-decoration: value; [underline, overline, underline overline, line-through, blink, none] color:#000000; }
A:active
{ text-decoration: value; [underline, overline, underline overline, line-through, blink, none] color:#000000; }
A:hover
{ text-decoration: value; [underline, overline, underline overline, line-through, blink, none] color:#000000; }

http://meyerweb.com/eric/articles/webrev/199806.html
H4 {text-decoration: overlie;}
H4 {text-decoration: underline overlie;}