Merge pull request #7695 from obulat/patch-1

Add viewport meta tag for responsive layout

sphinx/themes/basic/layout.html

@@ -120,6 +120,7 @@ <h3>{{ _('Navigation') }}</h3>
     {%- else %}
     <meta http-equiv="Content-Type" content="text/html; charset={{ encoding }}" />
     {%- endif %}
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     {{- metatags }}
     {%- block htmltitle %}
     <title>{{ title|striptags|e }}{{ titlesuffix }}</title>