In this tutorial I am going to show you how you can make the MENU button, in the mobile version of your website transparent.
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Adding CSS code to your website
Log in to your SmugMug account → click CUSTOMIZE → on the right panel, select ENTIRE SITE and add a CSS content block anywhere on your page. Copy the below code and paste it into the CSS content block window.
CSS
/*Change the background of the Mobile Menu button to transparent*/
.sm-user-ui .sm-page-widget-nav-mobile .sm-page-widget-nav-mobile-header {
background-color: transparent;
}