How can I remove the blue border on my mobile menu in the Minimal theme?

On my Shopify site, when I click on the menu on mobile, part of it gets a blue border. How can I remove this as this looks weird? This is on the minimal theme.

I know from THIS POST that this is the code snippet, but i don’t know how to apply this to the menu instead of the slideshow.

.index-section.slideshow-section:focus {
    outline: none;
}

Officialmajorbrand.com

Thanks in advance

@MajorBrand

We have checked for this issue in real system and browserstack but it is working ok. In which system configuration or browser you are checking?

I’m seeing the issue on my iPhone in safari and brave browser.

@MajorBrand

can you please add this code

*:focus {
    outline: none;
}

hello @MajorBrand

please Go to Online Store->Theme->Edit code then go to assets/theme.css ->paste below code at the bottom of the file.

*:focus {
    outline: none;
}