diff --git a/stragula.less b/stragula.less
index 01e7c76..3e37305 100644
--- a/stragula.less
+++ b/stragula.less
@@ -719,6 +719,15 @@ table.smworgtable-v2-toc {
     -moz-column-rule: 1px solid lightblue;
     column-rule: 1px solid lightblue;
 }
+
+@media only screen and (max-width: 480px) {
+	.user-manual {
+		-webkit-column-count: 2 !important;
+		-moz-column-count: 2 !important;
+		column-count: 2 !important;
+	}
+}
+
 .admin-manual {
     -webkit-column-count: 2;
     -moz-column-count: 2;