Change individual submenu width

Hi there,

1. Add this CSS to your site:

@media(min-width: 769px) {
    .main-navigation li.blog-menu ul {
        width: 150px;
    }
}

2. Edit the Blog Menu item in Appearance > Menus add give it a CSS Class of: blog-menu
This article explains how to do that:

https://docs.generatepress.com/article/using-the-wordpress-menu-builder/#custom-classes

I do not have Manage in Customizer option (button) in Menu...

Hi there,

Can you show us a PrintScreen of what you see?

Also, are you using an account with full admin privileges?

The Screen Options tab should be in the very top right hand corner of the screen.

If not found, then use this CSS:

@media(min-width: 769px) {
    .main-navigation li#menu-item-55 ul {
        width: 150px;
    }
}

Fixed! Thank you David!

Glad to hear that