fixed missing section styling

theme/templates/macros/renderers.html

@@ -69,7 +69,7 @@
 
 {%- macro sections(sl, lang, header_level) -%}
 	{%- for s in sl -%}
-	<section>
+	<section class="content">
 		{{ section(s, lang, header_level) }}
 	</section>
 	{%- endfor -%}