Bootstrap Code

You can display the code in bootstrap in two different ways.

If you are going to be displaying code inline, you should use the <code> tag.
you can use the unicode variants for the opening and closing tags − &lt; and &gt;.

Example of Code

<p>
  <code>&lt;header&gt;</code> is wrapped as an inline element.
</p>

Output

<pre> tag. If the code needs to be displayed as a standalone block element or if it has multiple lines, then you should use the <pre>

Example of Code

<pre>
The pre tag
is used to describe
the preformatted text.
</pre>

Output

The pre tag
is used to describe 
the preformatted text.