diff --git a/_includes/css/main.css b/_includes/css/main.css
index 2da2e36..73d63a7 100644
--- a/_includes/css/main.css
+++ b/_includes/css/main.css
@@ -446,4 +446,11 @@ footer .footer-below {
 
 .navbar-nav>.active>a {
     background-color: #{{ site.color.secondary-dark }} !important;
-}
\ No newline at end of file
+}
+
+// Fix modal mouse wheel issues
+// https://github.com/twbs/bootstrap/issues/16297 
+.modal.fade.in {
+    transform: translateZ(0);
+    -webkit-transform: translateZ(0);
+}