diff --git a/docs/assets/plugins/code-block/code-block.css b/docs/assets/plugins/code-block/code-block.css
index 522d73b3..107c5cce 100644
--- a/docs/assets/plugins/code-block/code-block.css
+++ b/docs/assets/plugins/code-block/code-block.css
@@ -147,7 +147,6 @@
 
 .code-block__toggle {
   position: relative;
-  z-index: 1;
   display: flex;
   flex: 1 1 auto;
   align-items: center;