diff --git a/app/Resources/static/themes/material/css/main.css b/app/Resources/static/themes/material/css/main.css
index 2fcf11bdd..ffccb4985 100755
--- a/app/Resources/static/themes/material/css/main.css
+++ b/app/Resources/static/themes/material/css/main.css
@@ -616,6 +616,39 @@ a.original {
   color: #212121;
 }
 
+#article article h1 strong,
+#article article h2 strong,
+#article article h3 strong,
+#article article h4 strong,
+#article article h5 strong,
+#article article h6 strong {
+  font-weight: 500;
+}
+
+#article article h6 {
+  font-size: 1.2rem;
+}
+
+#article article h5 {
+  font-size: 1.6rem;
+}
+
+#article article h4 {
+  font-size: 1.9rem;
+}
+
+#article article h3 {
+  font-size: 2.2rem;
+}
+
+#article article h2 {
+  font-size: 2.5rem;
+}
+
+#article article h1 {
+  font-size: 2.7rem;
+}
+
 #article img,
 #article figure {
   max-width: 100%;