The title Attribute

The title attribute specifies additional information about an element. The information is most often displayed as a tooltip text when the mouse hovers over the element. The title attribute is part of the global attributes and can be used on any HTML element.

EXAMPLE

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>title</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
</head>
<body>
<h1 title="Welcome to my HTML tutorial!">HTML Tutorial</h1>
<p title="HyperText Markup Language">Welcome to
    my <dfn title="HyperText Markup Language" style="cursor: pointer">HTML</dfn> tutorial!</p>
</body>
</html>

RESULT