diff --git a/common/common.scss b/common/common.scss
index e7514cf..51c499e 100644
--- a/common/common.scss
+++ b/common/common.scss
@@ -156,7 +156,7 @@ html.rtl SELECTOR {
 
 // END active line marker
 .d-toc-mini {
-  height: 100%;
+  align-self: stretch;
 
   button {
     height: 100%;