diff --git a/src/css/custom.css b/src/css/custom.css
index 7745764a2f..cb229d8a52 100644
--- a/src/css/custom.css
+++ b/src/css/custom.css
@@ -345,20 +345,20 @@ input[type="radio"]:checked::before {
   color: var(--ifm-color-gray-900);
 }
 
-.table-of-contents {
+.theme-doc-toc-desktop > .table-of-contents {
   padding-left: 0;
 }
 
-.table-of-contents li {
+.theme-doc-toc-desktop > .table-of-contents > li {
   margin-left: 0;
   padding-left: 12px;
 }
 
-li:has(a.table-of-contents__link--active) {
+.theme-doc-toc-desktop > .table-of-contents > li:has(a.table-of-contents__link--active) {
   border-left: 2px solid #fdea2e;
 }
 
-li li:has(a.table-of-contents__link--active) {
+.theme-doc-toc-desktop > .table-of-contents > li > li:has(a.table-of-contents__link--active) {
   border-left: none;
 }