diff --git a/templates/index.html b/templates/index.html
index 93cfcd2b..cc97452b 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -15,7 +15,7 @@
 	{% include 'header.html' %}
 	<title>{{ board.url }} - {{ board.title|e }}</title>
 </head>
-<body class="8chan {% if mod %}is-moderator{% else %}is-not-moderator{% endif %}" data-stylesheet="{% if config.default_stylesheet.1 != '' and not mod %}{{ config.default_stylesheet.1 }}{% else %}default{% endif %}">
+<body class="8chan {% if mod %}is-moderator{% else %}is-not-moderator{% endif %} active-{% if not no_post_form %}index{% else %}ukko{% endif %}" data-stylesheet="{% if config.default_stylesheet.1 != '' and not mod %}{{ config.default_stylesheet.1 }}{% else %}default{% endif %}">
 	{{ boardlist.top }}
 	
 	{% if pm %}<div class="top_notice">You have <a href="?/PM/{{ pm.id }}">an unread PM</a>{% if pm.waiting > 0 %}, plus {{ pm.waiting }} more waiting{% endif %}.</div><hr />{% endif %}
diff --git a/templates/page.html b/templates/page.html
index 11b6b953..8802e341 100644
--- a/templates/page.html
+++ b/templates/page.html
@@ -9,7 +9,7 @@
 	{% if mod %}{% include 'mod/header.html' %}{% endif %}
 	<title>{{ title }}</title>
 </head>
-<body class="8chan {% if mod %}is-moderator{% else %}is-not-moderator{% endif %} stylesheet-{% if config.default_stylesheet.1 != '' and not mod %}{{ config.default_stylesheet.1 }}{% else %}default{% endif %}">
+<body class="8chan {% if mod %}is-moderator{% else %}is-not-moderator{% endif %} stylesheet-{% if config.default_stylesheet.1 != '' and not mod %}{{ config.default_stylesheet.1 }}{% else %}default{% endif %} active-page">
 	{% if pm %}<div class="top_notice">You have <a href="?/PM/{{ pm.id }}">an unread PM</a>{% if pm.waiting > 0 %}, plus {{ pm.waiting }} more waiting{% endif %}.</div><hr>{% endif %}
 	<header>
 		{% if config.site_logo %}
diff --git a/templates/themes/catalog/catalog.html b/templates/themes/catalog/catalog.html
index ea89e188..8332403a 100644
--- a/templates/themes/catalog/catalog.html
+++ b/templates/themes/catalog/catalog.html
@@ -10,7 +10,7 @@
 	{% include 'header.html' %}
 	<title>{{ board }} - Catalog</title>
 </head>
-<body class="theme-catalog">
+<body class="theme-catalog active-catalog">
 	{{ boardlist.top }}
 	<header>
 		<h1>{{ settings.title }} (<a href="{{link}}">/{{ board }}/</a>)</h1>
diff --git a/templates/thread.html b/templates/thread.html
index fca5f999..e293ed09 100644
--- a/templates/thread.html
+++ b/templates/thread.html
@@ -22,7 +22,7 @@
 
 	<title>{{ board.url }} - {{ meta_subject }}</title>
 </head>
-<body class="8chan {% if mod %}is-moderator{% else %}is-not-moderator{% endif %}" data-stylesheet="{% if config.default_stylesheet.1 != '' and not mod %}{{ config.default_stylesheet.1 }}{% else %}default{% endif %}">
+<body class="8chan {% if mod %}is-moderator{% else %}is-not-moderator{% endif %} active-thread" data-stylesheet="{% if config.default_stylesheet.1 != '' and not mod %}{{ config.default_stylesheet.1 }}{% else %}default{% endif %}">
 	{{ boardlist.top }}
 	{% if pm %}<div class="top_notice">You have <a href="?/PM/{{ pm.id }}">an unread PM</a>{% if pm.waiting > 0 %}, plus {{ pm.waiting }} more waiting{% endif %}.</div><hr />{% endif %}
 	{% if config.url_banner %}<img class="board_image" src="{{ config.url_banner }}/random/{{ board.uri|url_encode }}" {% if config.banner_width or config.banner_height %}style="{% if config.banner_width %}width:{{ config.banner_width }}px{% endif %};{% if config.banner_width %}height:{{ config.banner_height }}px{% endif %}" {% endif %}alt="" />{% endif %}
