diff --git a/themes/quark-open-publishing/css/custom.css b/themes/quark-open-publishing/css/custom.css
index 059335bb..808bbc84 100644
--- a/themes/quark-open-publishing/css/custom.css
+++ b/themes/quark-open-publishing/css/custom.css
@@ -36,3 +36,14 @@
 	color: #1d66bf;
 }
 
+/* ursprüngliche Regel */
+.my-element {
+    font-size: 16px;
+}
+
+/* Media Query */
+@media screen and (min-width: 841px) {
+    .e-content {
+        margin-left: 5em;
+    }
+}