diff --git a/sphinx_rtd_theme/layout.html b/sphinx_rtd_theme/layout.html
index 2e352605..20a13eef 100644
--- a/sphinx_rtd_theme/layout.html
+++ b/sphinx_rtd_theme/layout.html
@@ -113,7 +113,7 @@
       <div class="wy-nav-content">
         <div class="rst-content">
           {% include "breadcrumbs.html" %}
-          <div role="main">
+          <div role="main" class="document">
             {% block body %}{% endblock %}
           </div>
           {% include "footer.html" %}