How To Increase The Height of The Divi Theme Options Custom CSS Box Tutorial by Pee-Aye Creative

How To Increase The Height of The Divi Theme Options Custom CSS Editor Box

This tutorial will how you how to increase the height of the Divi Custom CSS editor box in the Divi Theme Options, making it much easer to work!
Increase the height of the Divi custom css box BEFORE

(Scroll down for the “AFTER” photo.)

#1. Add The CSS In A Divi Child Theme

I first tried to put the CSS to make the CSS box taller…in the CSS box itself. Didn’t work. Haha So then I realized I needed to add this to the child theme, but not just in the normal style.css, but in a special place — I’lll show you.

NOTE: This section of the tutorial is going to look complicated, but it’s not as bad as it looks. Try it, it will be worth it! Use the video to help you.

If you already have a child theme installed…

You will need to use FTP, your hosting account File Manager, or even a WordPress File Manager Plugin to create some new folders and files.

If you don’t have a child theme yet…

You need one. You can get ours here: Download Our Free Divi Child Theme. Once you do that, you will need a way to edit the child theme. You can use brackets.io, or you can do use a method I already mentioend.

Folder And File Structure

So here is what needs to happen. We need to copy part of the Divi Theme’s code and place it in our child theme. That way, we can override it and it won’t be destroyed when we update Divi, the parent theme.

The folders and files that need to be copied are “/epanel/css/epanel.css”

You can find this in the Divi Theme files under “/wp-content/themes/Divi/epanel/css/panel.css.”

Here are the exact steps to follow:

  1. Copy the “epanel.css”
  2. Create a new folder in your child theme called “epanel”
  3. Create a new folder inside that folder called “css”
  4. Paste the “epanel.css” file into the “css” folder

Now all you have to do is add this CSS code snippet to the end of the “epanel.css” file. So copy this snippet, and go into the file (edit it) and scroll down to the bottom and past this there. Then save the file and update your child theme.

/*make the Divi Theme Options Custom CSS box taller*/
#divi_custom_css + .CodeMirror-wrap{
height: 800px !important;
}

You can make the height anything you want, but keep it reasonable. I thought the 800px was a good place to start.

#2. Add PHP To Your Divi Child Theme

Since we are modifying part of the Divi core theme, we need to get physical with the code and tell it what to do. Overriding it with just CSS won’t do the trick, so we also need to add this PHP snippet to our functions.php file in the Divi child theme. 

function load_custom_wp_admin_style() {
wp_register_style( 'custom_css', get_stylesheet_directory_uri() . '/epanel/css/panel.css', false, '1.0.0' );
wp_enqueue_style( 'custom_css' );
}
add_action( 'admin_enqueue_scripts', 'load_custom_wp_admin_style' );

Once you copy that in and save, go over to Divi>Theme Options and see what happened. You may need to do a hard refresh or clear the cache to see the results. But when you do, your Divi Theme Optioms Custom CSS box will be as tall as you want it! Now you can actually see what you are doing!

Increase the height of the Divi custom css box AFTER
10

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Nelson Lee Miller (aka The Divi Teacher)

Nelson is the owner of Pee-Aye Creative Co in the beautiful state of Pennsylvania. He loves helping small businesses, exploring, building websites with Divi, and teaching others.

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Asit Aithal
Asit Aithal
2 months ago

This is a very cool trick. However, it would be much cooler if I had a button next the editor and when the user clicked on it, it would load my css in the editor of my choice (say VS Code).

Chris
2 months ago

Thanks for the hint, I was always annoyed about the size but never bothered actually trying changing it 😉

I set 80vh instead of a fixed px value though which works better for me, as I constantly switch between a 15″ and 25″ screen!

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