diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 0c87c3f..4fada03 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -1,10 +1,10 @@
 {{ partial "head.html" . }}
   <body class="{{ .Site.Params.themeColor }} {{if .Site.Params.layoutReverse}}layout-reverse{{end}}">
   {{ partial "sidebar.html" . }}
-    <div class="content container">
+    <main class="content container">
     {{ block "main" . -}}{{- end }}
-    </div>
+    </main>
 
     {{ template "_internal/google_analytics_async.html" . }}
   </body>
-</html>
\ No newline at end of file
+</html>
