<h1>Hey, you're not a member of that group!</h1>
<h2>If you want to be, enter the group's access code</h2>
<% if @group_id %>
  <%= form_for @entourage, html: {class: "group-entry"} do |f| %>
    <%= f.label :password, "Backstage Passcode:" %><br>
    <%= f.password_field :password %><br><br>

    <%= f.hidden_field :group_id, value: @group_id %>

    <%= f.submit "Join the band", class: 'pure-button pure-button-primary' %>
  <% end %>
<% else %>
  <h1>This request isn't bound to a group - please visit the page of the group you're trying to join</h1>
<% end %>

<% if flash[:group_join_errors] %>
  <div class="error"><%= flash[:group_join_errors] %></div>
<% end %>


<div class="pure-g">
  <div class="pure-u-1-24"></div>
  <div class="pure-u-23-24">
    <h1>Hey, you're not a member of that group!</h1>
    <h2>If you want to be, enter the group's access code</h2>
    <% if @group_id %>
      <%= form_for @entourage, html: {class: "group-entry"} do |f| %>
        <%= f.label :password, "Backstage Passcode:" %><br>
        <%= f.password_field :password %><br><br>

        <%= f.hidden_field :group_id, value: @group_id %>

        <%= f.submit "Join the band", class: 'pure-button pure-button-primary' %>
      <% end %>
    <% else %>
      <h1>This request isn't bound to a group - please visit the page of the group you're trying to join</h1>
    <% end %>

    <% if flash[:group_join_errors] %>
      <div class="error"><%= flash[:group_join_errors] %></div>
    <% end %>
  </div>
</div>

Add margins to join-group page
Add margins to join-group page
