diff --git a/nbconvert_a11y/templates/a11y/static/style.css b/nbconvert_a11y/templates/a11y/static/style.css
index 2229975b..f6afe108 100644
--- a/nbconvert_a11y/templates/a11y/static/style.css
+++ b/nbconvert_a11y/templates/a11y/static/style.css
@@ -324,6 +324,7 @@
     body.sticky .cells>.cell>.nb-execution_count {
         position: sticky;
         top: 0;
+        padding-right: 1rem;
         background-color: var(--bg-color);
     }
 }