Hi there,
Thanks for writing in.
What do you mean by stretch? Is it greater than the container? Like edge to edge of the browser? It’s properly stretched to its header.
And please add this CSS to Admin > Appearance > Customizer > Custom > CSS
.x-navbar, .x-navbar .sub-menu {
background-color: rgba(215,205,192, 0.9) !important;
}
Thanks!