Switch css over to 960.gs. If I did everything right, things should look exactly the same.

mediagoblin/contrib/960_12_col.css

@@ -0,0 +1,357 @@
+/*
+  960 Grid System ~ Core CSS.
+  Learn more ~ http://960.gs/
+
+  Licensed under GPL and MIT.
+*/
+
+/*
+  Forces backgrounds to span full width,
+  even if there is horizontal scrolling.
+  Increase this if your layout is wider.
+
+  Note: IE6 works fine without this fix.
+*/
+
+body {
+  min-width: 960px;
+}
+
+/* `Container
+----------------------------------------------------------------------------------------------------*/
+
+.container_12 {
+  margin-left: auto;
+  margin-right: auto;
+  width: 960px;
+}
+
+/* `Grid >> Global
+----------------------------------------------------------------------------------------------------*/
+
+.grid_1,
+.grid_2,
+.grid_3,
+.grid_4,
+.grid_5,
+.grid_6,
+.grid_7,
+.grid_8,
+.grid_9,
+.grid_10,
+.grid_11,
+.grid_12 {
+  display: inline;
+  float: left;
+  margin-left: 10px;
+  margin-right: 10px;
+}
+
+.push_1, .pull_1,
+.push_2, .pull_2,
+.push_3, .pull_3,
+.push_4, .pull_4,
+.push_5, .pull_5,
+.push_6, .pull_6,
+.push_7, .pull_7,
+.push_8, .pull_8,
+.push_9, .pull_9,
+.push_10, .pull_10,
+.push_11, .pull_11 {
+  position: relative;
+}
+
+/* `Grid >> Children (Alpha ~ First, Omega ~ Last)
+----------------------------------------------------------------------------------------------------*/
+
+.alpha {
+  margin-left: 0;
+}
+
+.omega {
+  margin-right: 0;
+}
+
+/* `Grid >> 12 Columns
+----------------------------------------------------------------------------------------------------*/
+
+.container_12 .grid_1 {
+  width: 60px;
+}
+
+.container_12 .grid_2 {
+  width: 140px;
+}
+
+.container_12 .grid_3 {
+  width: 220px;
+}
+
+.container_12 .grid_4 {
+  width: 300px;
+}
+
+.container_12 .grid_5 {
+  width: 380px;
+}
+
+.container_12 .grid_6 {
+  width: 460px;
+}
+
+.container_12 .grid_7 {
+  width: 540px;
+}
+
+.container_12 .grid_8 {
+  width: 620px;
+}
+
+.container_12 .grid_9 {
+  width: 700px;
+}
+
+.container_12 .grid_10 {
+  width: 780px;
+}
+
+.container_12 .grid_11 {
+  width: 860px;
+}
+
+.container_12 .grid_12 {
+  width: 940px;
+}
+
+/* `Prefix Extra Space >> 12 Columns
+----------------------------------------------------------------------------------------------------*/
+
+.container_12 .prefix_1 {
+  padding-left: 80px;
+}
+
+.container_12 .prefix_2 {
+  padding-left: 160px;
+}
+
+.container_12 .prefix_3 {
+  padding-left: 240px;
+}
+
+.container_12 .prefix_4 {
+  padding-left: 320px;
+}
+
+.container_12 .prefix_5 {
+  padding-left: 400px;
+}
+
+.container_12 .prefix_6 {
+  padding-left: 480px;
+}
+
+.container_12 .prefix_7 {
+  padding-left: 560px;
+}
+
+.container_12 .prefix_8 {
+  padding-left: 640px;
+}
+
+.container_12 .prefix_9 {
+  padding-left: 720px;
+}
+
+.container_12 .prefix_10 {
+  padding-left: 800px;
+}
+
+.container_12 .prefix_11 {
+  padding-left: 880px;
+}
+
+/* `Suffix Extra Space >> 12 Columns
+----------------------------------------------------------------------------------------------------*/
+
+.container_12 .suffix_1 {
+  padding-right: 80px;
+}
+
+.container_12 .suffix_2 {
+  padding-right: 160px;
+}
+
+.container_12 .suffix_3 {
+  padding-right: 240px;
+}
+
+.container_12 .suffix_4 {
+  padding-right: 320px;
+}
+
+.container_12 .suffix_5 {
+  padding-right: 400px;
+}
+
+.container_12 .suffix_6 {
+  padding-right: 480px;
+}
+
+.container_12 .suffix_7 {
+  padding-right: 560px;
+}
+
+.container_12 .suffix_8 {
+  padding-right: 640px;
+}
+
+.container_12 .suffix_9 {
+  padding-right: 720px;
+}
+
+.container_12 .suffix_10 {
+  padding-right: 800px;
+}
+
+.container_12 .suffix_11 {
+  padding-right: 880px;
+}
+
+/* `Push Space >> 12 Columns
+----------------------------------------------------------------------------------------------------*/
+
+.container_12 .push_1 {
+  left: 80px;
+}
+
+.container_12 .push_2 {
+  left: 160px;
+}
+
+.container_12 .push_3 {
+  left: 240px;
+}
+
+.container_12 .push_4 {
+  left: 320px;
+}
+
+.container_12 .push_5 {
+  left: 400px;
+}
+
+.container_12 .push_6 {
+  left: 480px;
+}
+
+.container_12 .push_7 {
+  left: 560px;
+}
+
+.container_12 .push_8 {
+  left: 640px;
+}
+
+.container_12 .push_9 {
+  left: 720px;
+}
+
+.container_12 .push_10 {
+  left: 800px;
+}
+
+.container_12 .push_11 {
+  left: 880px;
+}
+
+/* `Pull Space >> 12 Columns
+----------------------------------------------------------------------------------------------------*/
+
+.container_12 .pull_1 {
+  left: -80px;
+}
+
+.container_12 .pull_2 {
+  left: -160px;
+}
+
+.container_12 .pull_3 {
+  left: -240px;
+}
+
+.container_12 .pull_4 {
+  left: -320px;
+}
+
+.container_12 .pull_5 {
+  left: -400px;
+}
+
+.container_12 .pull_6 {
+  left: -480px;
+}
+
+.container_12 .pull_7 {
+  left: -560px;
+}
+
+.container_12 .pull_8 {
+  left: -640px;
+}
+
+.container_12 .pull_9 {
+  left: -720px;
+}
+
+.container_12 .pull_10 {
+  left: -800px;
+}
+
+.container_12 .pull_11 {
+  left: -880px;
+}
+
+/* `Clear Floated Elements
+----------------------------------------------------------------------------------------------------*/
+
+/* http://sonspring.com/journal/clearing-floats */
+
+.clear {
+  clear: both;
+  display: block;
+  overflow: hidden;
+  visibility: hidden;
+  width: 0;
+  height: 0;
+}
+
+/* http://www.yuiblog.com/blog/2010/09/27/clearfix-reloaded-overflowhidden-demystified */
+
+.clearfix:before,
+.clearfix:after,
+.container_12:before,
+.container_12:after {
+  content: '.';
+  display: block;
+  overflow: hidden;
+  visibility: hidden;
+  font-size: 0;
+  line-height: 0;
+  width: 0;
+  height: 0;
+}
+
+.clearfix:after,
+.container_12:after {
+  clear: both;
+}
+
+/*
+  The following zoom:1 rule is specifically for IE6 + IE7.
+  Move to separate stylesheet if invalid CSS is a problem.
+*/
+
+.clearfix,
+.container_12 {
+  zoom: 1;
+}

mediagoblin/static/css/base.css

@@ -59,12 +59,6 @@ a.mediagoblin_logo:hover {
   background-position:0px -28px;
 }
 
-.mediagoblin_container {
-  width: 960px;
-  margin-left: auto;
-  margin-right: auto;
-}
-
 .mediagoblin_header_right {
   float:right;
 }
@@ -105,22 +99,14 @@ a.mediagoblin_logo:hover {
 /* forms */
 
 .form_box {
-  width:300px;
-  margin-left:auto;
-  margin-right:auto;
   background-color:#393939;
   background-image:url("../images/background_lines.png");
   background-repeat:repeat-x;
-  padding:1px 83px 30px 83px;
   font-size:18px;
-}
-
-.submit_box {
-  width:600px;
+  padding-bottom:30px;
 }
 
 .edit_box {
-  width:600px;
   background-image:url("../images/background_edit.png");
 }
 

mediagoblin/static/css/contrib/960_12_col.css

@@ -0,0 +1 @@
+../../../contrib/960_12_col.css

mediagoblin/templates/mediagoblin/auth/login.html

@@ -23,7 +23,8 @@
 
   <form action="{{ request.urlgen('mediagoblin.auth.login') }}"
         method="POST" enctype="multipart/form-data">
-    <div class="login_box form_box">
+    <div class="grid_3 alpha">&nbsp;</div>
+    <div class="grid_4 prefix_1 suffix_1 form_box">
       <h1>Log in</h1>
       {% if login_failed %}
         <div class="form_field_error">Login failed!</div>
@@ -38,5 +39,6 @@
       {% endif %}
       <p>Don't have an account yet? <a href="{{ request.urlgen('mediagoblin.auth.register') }}">Create one here!</a></p>
     </div>
+    <div class="grid_3 omega">&nbsp;</div>
   </form>
 {% endblock %}

mediagoblin/templates/mediagoblin/auth/register.html

@@ -23,12 +23,14 @@
 
   <form action="{{ request.urlgen('mediagoblin.auth.register') }}"
         method="POST" enctype="multipart/form-data">
-    <div class="register_box form_box">
+    <div class="grid_3 alpha">&nbsp;</div>
+    <div class="grid_4 prefix_1 suffix_1 form_box">
       <h1>Create an account!</h1>
       {{ wtforms_util.render_divs(register_form) }}
       <div class="form_submit_buttons">
         <input type="submit" value="submit" class="button" />
       </div>
     </div>
+    <div class="grid_3 omega">&nbsp;</div>
   </form>
 {% endblock %}

mediagoblin/templates/mediagoblin/base.html

@@ -18,6 +18,8 @@
 <html>
   <head>
     <title>{% block title %}GNU MediaGoblin{% endblock title %}</title>
+    <link rel="stylesheet" type="text/css"
+          href="{{ request.staticdirect('/css/contrib/960_12_col.css') }}"/>
     <link rel="stylesheet" type="text/css"
           href="{{ request.staticdirect('/css/base.css') }}"/>
     {% block mediagoblin_head %}
@@ -28,29 +30,33 @@
     {% block mediagoblin_body %}
       {% block mediagoblin_header %}
       <div class="mediagoblin_header">
-      <div class="mediagoblin_container">
-              {% block mediagoblin_logo %}
-                <a class="mediagoblin_logo" href="{{ request.urlgen('index') }}"></a>
-              {% endblock %}{% block mediagoblin_header_title %}{% endblock %}
-        <div class="mediagoblin_header_right">
-          {% if request.user %}
-                {{ request.user['username'] }}'s account 
-                <a href="{{ request.urlgen('mediagoblin.user_pages.user_home',
-                                            user= request.user['username']) }}">home</a> 
-                <a href="{{ request.urlgen('mediagoblin.user_pages.user_gallery',
-                                            user= request.user['username']) }}">gallery</a> 
-                (<a href="{{ request.urlgen('mediagoblin.auth.logout') }}">logout</a>)
-          {% else %}
-                <a href="{{ request.urlgen('mediagoblin.auth.login') }}">
-                  Login</a>
-          {% endif %}
+        <div class="container_12">
+          <div class="grid_12">
+                  {% block mediagoblin_logo %}
+                    <a class="mediagoblin_logo" href="{{ request.urlgen('index') }}"></a>
+                  {% endblock %}{% block mediagoblin_header_title %}{% endblock %}
+            <div class="mediagoblin_header_right">
+              {% if request.user %}
+                    {{ request.user['username'] }}'s account 
+                    <a href="{{ request.urlgen('mediagoblin.user_pages.user_home',
+                                                user= request.user['username']) }}">home</a> 
+                    <a href="{{ request.urlgen('mediagoblin.user_pages.user_gallery',
+                                                user= request.user['username']) }}">gallery</a> 
+                    (<a href="{{ request.urlgen('mediagoblin.auth.logout') }}">logout</a>)
+              {% else %}
+                    <a href="{{ request.urlgen('mediagoblin.auth.login') }}">
+                      Login</a>
+              {% endif %}
+            </div>
+          </div>
         </div>
       </div>
-      </div>
       {% endblock %}
-      <div class="mediagoblin_container">
-        {% block mediagoblin_content %}
-        {% endblock mediagoblin_content %}
+      <div class="container_12">
+        <div class="grid_12">
+          {% block mediagoblin_content %}
+          {% endblock mediagoblin_content %}
+        </div>
       </div>
     {% endblock mediagoblin_body %}
   </body>

mediagoblin/templates/mediagoblin/edit/edit.html

@@ -25,7 +25,8 @@
                                user= media.uploader().username,
                                media= media._id) }}"
         method="POST" enctype="multipart/form-data">
-    <div class="edit_box form_box">
+    <div class="grid_2 alpha">&nbsp;</div>
+    <div class="grid_6 prefix_1 suffix_1 edit_box form_box">
       <h1>Editing {{ media.title }}</h1>
       {{ wtforms_util.render_divs(form) }}
       <div class="form_submit_buttons">
@@ -35,6 +36,7 @@
       <img src="{{ request.app.public_store.file_url(
          media['media_files']['thumb']) }}" />
     </div>
+    <div class="grid_2 omega">&nbsp;</div>
   </form>
   
 {% endblock %}    

mediagoblin/templates/mediagoblin/edit/edit_profile.html

@@ -24,12 +24,14 @@
   <form action="{{ request.urlgen('mediagoblin.edit.profile',
                                user=user.username) }}"
         method="POST" enctype="multipart/form-data">
-    <div class="edit_box form_box">
+    <div class="grid_2 alpha">&nbsp;</div>
+    <div class="grid_6 prefix_1 suffix_1 edit_box form_box">
       <h1>Editing {{ user['username'] }}'s profile</h1>
       {{ wtforms_util.render_divs(form) }}
       <div class="form_submit_buttons">
         <input type="submit" value="submit" class="button" />
       </div>
     </div>
+    <div class="grid_2 omega">&nbsp;</div>
   </form>
 {% endblock %}    

mediagoblin/templates/mediagoblin/media_details.html

@@ -17,9 +17,9 @@
 #}
 {% extends "mediagoblin/base.html" %}
 {% block mediagoblin_content %}
-
   {# temporarily, an "image gallery" that isn't one really ;) #}
   {% if media %}
+  
     <h1>Media details for {{media.title}}</h1>
     <div>
       <img src="{{ request.app.public_store.file_url(

mediagoblin/templates/mediagoblin/root.html

@@ -18,7 +18,6 @@
 {% extends "mediagoblin/base.html" %}
 
 {% block mediagoblin_content %}
-  
   <h1>{% trans %}Welcome to GNU MediaGoblin!{% endtrans %}</h1>
 
   {% if request.user %}
@@ -39,8 +38,5 @@
 
   {# temporarily, an "image gallery" that isn't one really ;) #}
 
-  <div>
     {% include "mediagoblin/utils/object_gallery.html" %}
-  </div>
-
 {% endblock %}

mediagoblin/templates/mediagoblin/submit/start.html

@@ -23,12 +23,14 @@
 
   <form action="{{ request.urlgen('mediagoblin.submit.start') }}"
         method="POST" enctype="multipart/form-data">
-    <div class="submit_box form_box">
+    <div class="grid_2 alpha">&nbsp;</div>
+    <div class="grid_6 prefix_1 suffix_1 edit_box form_box">
       <h1>Submit yer media</h1>
       {{ wtforms_util.render_divs(submit_form) }}
       <div class="form_submit_buttons">
       <input type="submit" value="Submit" class="button" />
       </div>
     </div>
+    <div class="grid_2 omega">&nbsp;</div>
   </form>
 {% endblock %}