diff --git a/docs/details.css b/docs/details.css
index 43cdbf0..d6abbff 100644
--- a/docs/details.css
+++ b/docs/details.css
@@ -21,6 +21,6 @@ details[open] summary {
     margin-bottom: .5em;
 }
 
-.math-tex {
+.math-text {
     display: none;
 }
diff --git a/docs/math_render.js b/docs/math_render.js
index 04c9788..5eb0b07 100644
--- a/docs/math_render.js
+++ b/docs/math_render.js
@@ -43,7 +43,7 @@ function toggleKaTeX(elt, toggle) {
 
 let math_objects = document.getElementsByClassName("math");
 let katex_switch = document.getElementById("renderWithKatex");
-katex_switch.checked = false;
+katex_switch.checked = true;
 katex_switch.addEventListener(
     "change",
     function () {