diff --git a/themes/buha/assets/scss/container.scss b/themes/buha/assets/scss/container.scss
index 269ac4d2..d8db3e03 100644
--- a/themes/buha/assets/scss/container.scss
+++ b/themes/buha/assets/scss/container.scss
@@ -33,3 +33,7 @@
         }
     }
 }
+
+@-moz-document url-prefix("about:reader?") {
+    body { background: red; }
+}
diff --git a/themes/buha/layouts/_default/_markup/render-heading.html b/themes/buha/layouts/_default/_markup/render-heading.html
deleted file mode 100644
index 496b2d7c..00000000
--- a/themes/buha/layouts/_default/_markup/render-heading.html
+++ /dev/null
@@ -1,7 +0,0 @@
-    {{ $url := (printf "%s#%s" .Page.Permalink .Anchor)  | safeURL }}
-    <h{{ .Level }} id="{{ .Anchor | safeURL }}">
-        
-            <a class="no_underline" href="{{ $url }}">
-            {{ .Text | safeHTML }}
-        </a>
-    </h{{ .Level }}>