diff --git a/layouts/partials/script/single-script.html b/layouts/partials/script/single-script.html
index b3ab901..0a87c80 100644
--- a/layouts/partials/script/single-script.html
+++ b/layouts/partials/script/single-script.html
@@ -625,6 +625,7 @@
         x.parentNode.style.backgroundColor = "transparent"
         var node0 = document.createElement('div');
         node0.id = 'jsxgraph' + index;
+        node0.style.margin = 'auto';
         node0.classList += 'jxgbox';
         
         x.parentNode.insertBefore(node0, x);