The <code> tag is used to insert fragments of program code, variables, etc. into an HTML document. In the browser, the code is displayed in monospaced font (a font in which all characters are of the same width) of the smaller size.
The <code> tag comes in pairs. The content is written between the opening (<code>) and the closing (</code>) tags.
<html> <head> <title>Title of the document</title> </head> <body> <p>Ordinary text.</p> <code>Line of program code.</code> <p>Continuation of the ordinary text.</p> </body> </html>