Hi Charlie,
Thank you for reaching out to us. This would require custom CSS which is regretfully outside of our support scope, but we will do our best to help you getting started with the customization but we will not be able to implement it.
To remove all the border around the menu, try adding the following code in the Theme Options > CSS:
.x-navbar,
.x-logobar,
.x-navbar .desktop .x-nav>li>a,
.x-navbar .desktop .x-nav>li:first-child>a {
border: none;
}
I tried to find the popup on the page you shared but I could find it however by looking at your screenshot, it looks like you’re using a third party plugin WooCommerce Lottery to show the popups, regretfully, we cannot provide support for third party plugins or scripts as our support policy in the sidebar states due to the fact that there is simply no way to account for all of the potential variables at play when using another developer’s plugin or script. Because of this, any questions you have regarding setup, integration, or troubleshooting any piece of functionality that is not native to X will need to be directed to the original developer.
Thank you for your understanding.