remove container-fluid

src/client/styles/scss/_layout.scss

@@ -29,6 +29,8 @@ body {
 }
 
 .main {
+  padding-right: 15px;
+  padding-left: 15px;
   margin-top: 1rem;
 }
 

src/server/views/layout-growi/base/layout.html

@@ -19,7 +19,7 @@
 <div id="grw-fav-sticky-trigger" class="sticky-top"></div>
 {% endblock %}
 
-<div id="main" class="main container-fluid {% if page %}{{ css.grant(page) }}{% endif %} {% block main_css_class %}{% endblock %}">
+<div id="main" class="main {% if page %}{{ css.grant(page) }}{% endif %} {% block main_css_class %}{% endblock %}">
   {% block content_main_before %}
   {% endblock %}