/**
     * Get the value for the key 'query.facet.fields.missing'. <br>
     * The value is, e.g.  <br>
     * comment: Value for missing facet fields.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryFacetFieldsMissing();

    /**
     * Get the value for the key 'query.facet.fields.missing' as {@link Integer}. <br>
     * The value is, e.g.  <br>

 $breakpoints: $grid-breakpoints) {\n  $max: map-get($breakpoints, $name);\n  @return if($max and $max > 0, $max - .02, null);\n}\n\n// Returns a blank string if smallest breakpoint, otherwise returns the name with a dash in front.\n// Useful for making responsive utilities.\n//\n//    >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px, xxl: 1400px))\n//    \"\"  (Returns a blank string)\n//    >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px, xxl:...

default top margin\n  margin-top: 0;\n  // Reset browser default of `1em` to use `rem`s\n  margin-bottom: 1rem;\n  // Don't allow content to break outside\n  overflow: auto;\n  // Disable auto-hiding scrollbar in IE & legacy Edge to avoid overlap,\n  // making it impossible to interact with the content\n  -ms-overflow-style: scrollbar;\n}\n\n\n//\n// Figures\n//\n\nfigure {\n  // Apply a consistent margin strategy (matches our type styles).\n  margin: 0 0 1rem;\n}\n\n\n//\n// Images and content\n//\n\nimg...