ReynoldsTimJ

Use this to force line breaks into your posts and pages. It is simple. [br] will add a line break. It won’t be filtered out by TinyMCE.
There are no attributes. Not much else to see here. I couldn’t find a plugin that did this anywhere. Thought that was odd.
Example time!
If your text editor content looks like this:
<pre><code>Hello this is my 
[br]
example!
</code></pre>
The HTML will end up:
<pre><code>Hello this is my
 
example!
</code></pre>
Because the default styling of a paragraph tag adds an area of white space below it this may result in more of a break than you wanted. Solution:
<pre><code>Hello this is my [br] example!
</code></pre>
Which results in the following HTML:
<pre><code>Hello this is my example!
</code></pre>
Question/Comments: Please hit up the forum or drop me a line at Reynolds.TimJ+LinebreakPlugin@gmail.com

Line Break Shortcode

Use this to force line breaks into your posts and pages. It is simple. [br] will add a line break. It won't be filtered out by TinyMCE.

YAHMAN

ZIPANG

When you enter the HTML code directly, the layout changes depending on the p and br tags that WordPress automatically inserts.
<pre><code>remove_filter( 'the_content', 'wpautop' );
</code></pre>
It can be solved by adding the above code. 
However, this will disable all auto-inserted p and br tags. 
It is not user-friendly.
This plugin can be partially disabled.
Just enter the part you want to disable in the shortcode.
<pre><code>[jo]your HTML code[/jo]
</code></pre>
The author of this plugin loves text editors.

Just Output

WordPress automatically inserts p and br tags, but disables them in shortcodes.

Line Break Shortcode vs Just Output