diff --git a/formula10/static/style/diagram.css b/formula10/static/style/diagram.css
index 71fa8e3..a015382 100644
--- a/formula10/static/style/diagram.css
+++ b/formula10/static/style/diagram.css
@@ -3,7 +3,7 @@
     height: 50vh;
 }
 
-@media only screen and (orientation: landscape) {
+@media only screen and (orientation: landscape) and (max-width: 900px) {
     .chart-container {
         width: 100%;
         height: 100vh;