change the size of text html code example
Example 1: html font size
<span style="font-size:20px;"></span>
Example 2: how to make text bigger in html
<!DOCTYPE html>
<html>
<head>
<title>HTMLFont size</title>
</head>
<body>
<h1 style="color:red;font-size:40px;">Heading</h1>
<p style="color:blue;font-size:18px;">This is demo text</p>
</body>
</html>