Hook a fixed position element into the DjangoCMS toolbar expanded / collapsed states

example.scss

// Hook a fixed position element into the DjangoCMS toolbar expanded / collapsed states
.fixed-element {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%
        
    .cms-toolbar-expanding &, 
    .cms-toolbar-expanded & {
        top: 46px;
    }

    .cms-toolbar-collapsing & {
        top: 0;
    }
}