diff --git a/pom.xml b/pom.xml
index d047568..4246d5b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -199,6 +199,7 @@
                         <script>
                             window.addEventListener('load', function() {
                                 hljs.highlightAll();
+                                document.querySelectorAll('pre').forEach(function(el) { el.setAttribute('tabindex', '0'); });
                             });
                         </script>
                         <script src="/version-switcher.js"></script>
diff --git a/src/main/javadoc/custom-javadoc.css b/src/main/javadoc/custom-javadoc.css
index 5d353a1..e9f6495 100644
--- a/src/main/javadoc/custom-javadoc.css
+++ b/src/main/javadoc/custom-javadoc.css
@@ -76,4 +76,9 @@ select#version-switcher:disabled:hover {
   outline: 2px solid #4AA0C7;
   outline-offset: 2px;
   border-radius: 4px;
-}
\ No newline at end of file
+}
+
+pre:focus-visible {
+  outline: 2px solid #4AA0C7;
+  outline-offset: 2px;
+}