diff --git a/12/style.css b/12/style.css
index 8a9dd5c..8b1a536 100644
--- a/12/style.css
+++ b/12/style.css
@@ -119,6 +119,10 @@ color: orangered;
  margin-top: 15px;
 }
 
+audio{
+width:100%;  
+}
+
 a{
   color:red;
   text-decoration: none;