diff --git a/weblog/B0. Template/styles.css.md b/weblog/B0. Template/styles.css.md
index 5d91a7d..36d501d 100644
--- a/weblog/B0. Template/styles.css.md	
+++ b/weblog/B0. Template/styles.css.md	
@@ -124,6 +124,10 @@ h1, h2, h3, h4, h5, h6 {
 	margin: 1rem 0;
 }
 
+iframe {
+	max-width: 100%;
+}
+