As you know the paragraph is a block of text and you can define it with <p> tag in Html. 


Example:

<p>Paragraph one.</p>
<p>Paragraph two.</p>


Spaces in the paragraph

The browser will ignore A lot of spaces in the paragraph

Example:

<p>I am learning       html in a simple way</p>

Output: 

I am learning html in a simple way


Newline

If you write a paragraph in the newline browser will also ignore the newline.  


Example:

<p>
I am 
learning html in a 
simple way
</p>

Output:


I am learning html in a simple way


HTML Line Breaks

In the above example, you want to put paragraph content in a new line you have to use <br> tag.


Example:

<p>I am learning HTML in a <br>
simple way
</p>

Output:

I am learning HTML in a
simple way


HTML Horizontal Rules

It is used to separate content and is defined with the <hr> tag, it is not necessary to close the <hr> tag


Example:

<p>Paragraph one.</p>
<hr>
<p>Paragraph two.</p>

Output:

Paragraph one.


Paragraph two.