Remove lines between menu in Header?

[kanmaster]

I’ve read a LOT of forum threads about this. But none of the CSS fixes seem to work for my site. [www.diysmarthomeguide.com] , I’m hoping you can help me out in removing the lines from the header of my menu.
Thanks in advance.

[christopher]

Hi there,
Please add the CSS code below to X > Theme Options > CSS:

.x-navbar .desktop .x-nav>li>a,
.x-navbar .desktop .x-nav>li:first-child>a {
    border: none;
}

Thank you.