diff --git a/docs/styles/mathjax_overflowfix.css b/docs/styles/mathjax_overflowfix.css
index 29e0de58ad32f43f10dc3d74a180992bbcaacdd6..cf3a6a305f380ebc869cca07d19db6b134ca2045 100644
--- a/docs/styles/mathjax_overflowfix.css
+++ b/docs/styles/mathjax_overflowfix.css
@@ -1,3 +1,4 @@
 .mjx-chtml {
   overflow-x: auto; /* Horizontally scroll long equations. */
+  overflow-y: hidden;
 }