diff --git a/akka-docs/_sphinx/themes/akka/static/docs.css b/akka-docs/_sphinx/themes/akka/static/docs.css
index fbc53ad71b..47a68ba441 100644
--- a/akka-docs/_sphinx/themes/akka/static/docs.css
+++ b/akka-docs/_sphinx/themes/akka/static/docs.css
@@ -128,11 +128,15 @@ strong {color: #0B5567; }
   text-decoration: underline;
 }
 .admonition p.admonition-title {
-	color: #ffffff;
-	margin-bottom: 6px;
-	font-size: 16px;
-	font-weight: bold;
-	line-height: 20px;
+  color: #ffffff;
+  margin-bottom: 6px;
+  font-size: 16px;
+  font-weight: bold;
+  line-height: 20px;
+}
+
+.admonition strong, .warning strong {
+  color: #ffffff;
 }
 
 .topic {