<!DOCTYPE html>
<html>
<head>
<style>
h1 {
text-decoration-line: underline;
text-decoration-style: solid;
}
h2 {
text-decoration-line: underline;
text-decoration-style: double;
}
h3 {
text-decoration-line: underline;
text-decoration-style: dotted;
}
p.ex1 {
text-decoration-line: underline;
text-decoration-style: dashed;
}
p.ex2 {
text-decoration-line: underline;
text-decoration-style: wavy;
}
p.ex3 {
text-decoration-line: underline;
text-decoration-color: red;
text-decoration-style: wavy;
}
</style>
</head>
<body>
<h1>Heading 1</h1>
<h2>Heading 2</h2>
<h3>Heading 3</h3>
<p class="ex1">A paragraph.</p>
<p class="ex2">Another paragraph.</p>
<p class="ex3">Another paragraph.</p>
</body>
</html>