If there is no any list item, it is called as Empty list. The header text will be rendered indented. This way we can created indented text format as well as we can also use
<blockquote>
element.
snippet
<html>
<head>
</head><body>
<ul type="square"> Header of unordered list
<br> 1st list item
<br> 2nd list item
<br> 3rd list item
<ul>
<body>
<html>
Output
Header of unordered list
1st list item
2nd list item
3rd list item