Simple Material Design Navigation Drawer BACKDROP
(using CSS ::before)
Add this custom code CSS snippet to your webflow project:
(Project Settings -> Custom Code)
<style>
.w-nav-overlay::before {
content: "";
background: rgba(0,0,0,0.65);
position: fixed;
top: 0;
left:0;
bottom: 0;
right: 0;
}
</style>
