Make forms responsive

app/assets/stylesheets/asciicasts.sass

@@ -110,10 +110,3 @@
 
       h2
         font-size: 20px
-
-.asciicast-settings
-  form
-    .form-group
-      > div
-        width: 500px
-

app/assets/stylesheets/users.sass

@@ -5,12 +5,6 @@
     #user_username
       width: 200px
 
-.account-settings
-  form
-    .form-group
-      > div
-        width: 500px
-
 .returning-user
   border-left: 1px solid #bbb
   padding-left: 30px

app/views/asciicasts/edit.html.slim

@@ -1,4 +1,6 @@
-.container.asciicast-settings
+.container
+  .row
+    .col-md-9
       = horizontal_form_for @asciicast do |f|
         legend Asciicast properties
 

app/views/users/edit.html.slim

@@ -1,4 +1,6 @@
-.container.account-settings
+.container
+  .row
+    .col-md-9
       = horizontal_form_for @user do |f|
         legend Account settings