diff --git a/styles.css b/styles.css
index 276ed314a6a7ba8a0a3342a5152f0cc43911c8bb..e52d72c2c987d2e68d4c253e3c05b5d2088b4443 100644
--- a/styles.css
+++ b/styles.css
@@ -331,7 +331,7 @@ body {
     margin: 0;
 }
 
-@media only screen and (max-width: 768px) {
+@media only screen and (max-width: 991px) {
     .path-mod-pdfannotator #content-wrapper, .path-mod-pdfannotator #comment-wrapper {
         height: 50%;
     }