Make style fixes, make all submit buttons full-width btn-block.

app/assets/stylesheets/pages/login.scss

@@ -198,6 +198,11 @@
     font-weight: normal;
   }
 
+  input[type="submit"] {
+    @extend .btn-block;
+    margin-bottom: 0px;
+  }
+
   .devise-errors {
     h2 {
       margin-top: 0;

app/views/devise/sessions/_new_base.html.haml

@@ -5,8 +5,6 @@
   %div.form-group
     = f.label :password
     = f.password_field :password, class: "form-control bottom", required: true, title: "This field is required."
-  .sign-in
-    = f.submit "Sign in", class: "btn btn-save"
   - if devise_mapping.rememberable?
     .remember-me.checkbox
       %label{for: "user_remember_me"}
@@ -14,3 +12,5 @@
         %span Remember me
       .pull-right
         = link_to "Forgot your password?", new_password_path(resource_name)
+  %div.prepend-top-20
+    = f.submit "Sign in", class: "btn btn-save"