Add explicit title to iframe embed

diff --git a/site/content/docs/4.3/helpers/embed.md b/site/content/docs/4.3/helpers/embed.md
index f6f69c2dc455f0b59366712b2ce34c855b968c43..dcc7ddad6a6c277b4444f96d9ef851227adb8766 100644 (file)
--- a/site/content/docs/4.3/helpers/embed.md
+++ b/site/content/docs/4.3/helpers/embed.md
@@ -18,7 +18,7 @@ Wrap any embed like an `<iframe>` in a parent element with `.embed-responsive` a
 
 {{< example >}}
 <div class="embed-responsive embed-responsive-16by9">
-  <iframe class="embed-responsive-item" src="https://www.youtube.com/embed/zpOULjyy-n8?rel=0" allowfullscreen></iframe>
+  <iframe class="embed-responsive-item" src="https://www.youtube.com/embed/zpOULjyy-n8?rel=0" title="YouTube video" allowfullscreen></iframe>
 </div>
 {{< /example >}}