HTML web page can look complicated with tons of different elements. SEOs don’t need to know whole coding process but if can be very handy if you know the basics. Here is the basic page structure as start of understanding HTML elements if you are SEO.
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
<p>Paragraph of text</p>
</body>
</html>