How to Build a Divi Mega Menu (Step-by-Step Guide)
Standard dropdown menus work fine for small sites, but when you have dozens of pages, product categories, or service areas, they become cramped and hard to navigate. A Divi mega menu solves this by expanding navigation into a wide, multi-column panel that can include images, icons, descriptions, and calls to action — all within your header. This guide walks you through building one from scratch using Divi's built-in Theme Builder and a small amount of custom CSS.
What Is a Divi Mega Menu and Why Use One?
A mega menu is a full-width or wide dropdown that replaces the standard single-column flyout. Instead of a narrow list, visitors see a structured grid of links, often grouped by category. E-commerce stores, agencies, and large blogs rely on them to surface deep content without burying it under multiple clicks.
With the Divi theme from Elegant Themes, you have two viable paths: use the native menu system with custom CSS, or use Divi's Theme Builder to construct a fully custom header layout. Both approaches are covered below. No third-party plugin is required for either method.
Method 1: WordPress Menu System + Custom CSS
This is the fastest approach and works well for most sites. Navigate to Appearance → Menus in your WordPress dashboard. Create your top-level menu items, then add child items beneath them. These children will form the columns of your mega menu.
Next, open Appearance → Additional CSS (or your Divi child theme's style.css) and add the following CSS. It targets Divi's default header and forces the dropdown into a wide panel:
/* Mega menu container */
.et_pb_menu .nav li.mega-menu > ul.sub-menu {
width: 700px;
display: flex;
flex-wrap: wrap;
padding: 20px;
background: #1a1a2e;
border-top: 3px solid #7eb8f7;
}
.et_pb_menu .nav li.mega-menu > ul.sub-menu > li {
width: 33%;
padding: 10px 14px;
}
.et_pb_menu .nav li.mega-menu > ul.sub-menu > li > a {
font-weight: 700;
color: #ffffff;
font-size: 13px;
text-transform: uppercase;
letter-spacing: 0.5px;
}To activate this on a specific menu item, go back to Appearance → Menus, expand the top-level item, and add the CSS class mega-menu in the "CSS Classes" field. If you do not see that field, click Screen Options at the top of the page and enable CSS Classes.
Method 2: Divi Theme Builder Custom Header
For complete design freedom, build a custom header using the Divi Theme Builder. Go to Divi → Theme Builder, click Add Global Header, and choose to build it with the Divi Builder. Inside the builder, use a fullwidth section with a Menu Module for primary navigation and a row below it that becomes your mega panel.
The trick is using Divi's built-in hover state options on the menu item. Set the row containing your mega content to position: absolute via the Advanced tab's custom CSS field, then hide it by default with opacity: 0; pointer-events: none; and reveal it on parent hover. This gives you pixel-perfect control over fonts, colors, images, and layout — far beyond what standard WordPress menus allow.
Adding Icons and Images to Your Divi Mega Menu
One of the biggest advantages of a Divi mega menu built through Theme Builder is the ability to add visual elements. Insert an Image Module or Icon Module alongside your link text. Use Divi's spacing controls to align them cleanly. Category icons dramatically improve scannability, especially for service-based businesses where users need to identify their need quickly.
Keep images small — 40×40px to 60×60px SVG icons work best. They scale cleanly at any resolution and do not slow down your header load time.
Making Your Mega Menu Mobile-Friendly
Mega menus are inherently desktop-focused. On mobile, you want them to collapse back into a standard accordion or hamburger menu. In Divi's Theme Builder, you can show and hide entire sections based on breakpoint using the Visibility settings under the Advanced tab. Build a separate mobile header section and hide your desktop mega panel on tablet and phone breakpoints.
If you are using the CSS-only method, add a media query that resets all your mega menu styles below 980px so Divi's default responsive menu takes over without conflict.
Performance Tips for Divi Navigation
A complex header can add render-blocking weight if not handled carefully. Keep these practices in mind: avoid loading large background images in your mega panel, use Divi's built-in caching via Divi → Theme Options → Performance, and enable static CSS file generation. If you are using a Divi child theme, make sure your custom CSS is enqueued correctly rather than pasted into the Customizer, which regenerates on every page load.
Testing and Finalizing Your Mega Menu
Before going live, test your Divi mega menu across Chrome, Firefox, Safari, and Edge. Check hover states, keyboard navigation (tab through links), and touch behavior on a real mobile device. Use browser DevTools to inspect z-index conflicts — these are the most common issue when a dropdown appears behind other page elements. Set your mega panel's z-index to at least 9999 to ensure it renders above sliders and sticky headers.
Once satisfied, save your Theme Builder template, clear any caching plugins, and preview the live site. A well-built Divi mega menu is one of the most impactful UX improvements you can make to a content-rich WordPress site.