Solved Center align text in secondary menu

I'm having some issues with our website. I want a CAT button in our header, and the easiest way (due to our multiple language options) seems to be adding a secondary menu and design it as a button and place it next to our primary menu. This works great, except the secondary menu will not align to the center. I've tried working with the module options and that doesn't make a difference. I've also tried adding some CSS, and that's not working either. I'm clearly no expert at this. Any tips?

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I've solved it! Instead of designing the secondary menu as a button in Theme Builder, I assigned a CSS Class to the menu item and designed the button with custom CSS in Theme Options. I did a combination of the CAT-button tutorials from Divi Engine and Divi Life, which worked perfectly after some tweaking.