How To Remove Border Box On Mobile Menu

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Im trying to remove the border box that appears when you toggle the hamburger menu , and when you close it.

There appears to be a border box on only the left and right side of the hamburger menu when toggled or closed.

How can I remove it so there’s no border box when toggled?

Thank you!

[UPDATE]

I was able to find a code that worked to remove the two border lines on the mobile hamburger menu, here’s the code:

.oceanwp-mobile-menu-icon a:focus {
outline: none !important;
}

#mobile-dropdown ul li a:focus {
outline: none !important;
}

But I would also like to remove the border on the regular desktop version as well, how can this be achieved?

Thanks!

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