In HTML, the <code>&lt;br&gt;</code> tag is used to insert a line break. The <code>&lt;br&gt;</code> tag is an empty element, which means that it does not have a closing tag and does not contain any content.
Here is an example of how to use a break tag in an HTML document
<pre><code class="lang-plaintext">&lt;p&gt;This is a paragraph.&lt;br&gt;
It has multiple lines.&lt;br&gt;
Each line is separated by a line break.&lt;/p&gt;
</code></pre>
The output of the break tag
<pre><code class="lang-plaintext">This is a paragraph.
It has multiple lines.
Each line is separated by a line break.
</code></pre>

In HTML, the ` ` tag is used to insert a line break. The ` ` tag is an empty element, which means that it does not have a closing tag and does not contain any content.

Here is an example of how to use a break tag in an HTML document

```plaintext
This is a paragraph. 
It has multiple lines. 
Each line is separated by a line break.
```

The output of the break tag

```plaintext
This is a paragraph.
It has multiple lines.
Each line is separated by a line break.
```

Break tag in HTML