diff --git a/www/static/css/custom.css b/www/static/css/custom.css
index b59d8d97c56a2be1e07b9c8fa3812fe23c5d5f15..f3d1e313688a7d276d8e73c78623fc05e9b3672d 100644
--- a/www/static/css/custom.css
+++ b/www/static/css/custom.css
@@ -141,6 +141,12 @@ padding: 0 15px;
   margin :auto ;
 }
 
+@media only screen and (max-width: 768px) {
+	#donation {
+		width: 80%;
+	}
+}
+
 #donation .btn em {
     font-style:normal;
 }