<div class="panel panel-default">
  <div class="panel-heading">
    <h4 class="panel-title">
      <a class="collapsed" data-toggle="collapse" data-parent="#accordion" href="#selection-tags">
        Add new user
      </a>
    </h4>
  </div>
  <div id="selection-tags" class="panel-collapse collapse" role="tabpanel">

    <div class="panel-body">
      <p>
        The <code>yeti</code> user exists to enable anonymous access to
        Yeti. Disable it after logging in as a new user if you only want to
        allow authenticated access.
      </p>
        <form method="post" action="{{ url_for("auth.new_user") }}">
          <div class="form-group">
              <input type="text" class="form-control" name="username" placeholder="Username" required/>
          </div>
          <div class="form-group">
              <input type="password" name="password" id="password" class="form-control" placeholder="Password" required>
          </div>
          <div class="form-group">
              <input type="checkbox" name="admin"> <label for="admin">Add as admin</label>
          </div>
          <div class="pull-right">
              <input class="btn btn-primary btn-sm" type="submit" name="" value="Add user">
          </div>
        </form>
    </div>
  </div>
</div>

<div class="panel panel-default">
  <div class="panel-heading">
    <h4 class="panel-title">
      <a class="collapsed" data-toggle="collapse" data-parent="#accordion" href="#selection-tags">
        Add new user
      </a>
    </h4>
  </div>
  <div id="selection-tags" class="panel-collapse" role="tabpanel">

    <div class="panel-body">
      <p>
        The <code>yeti</code> user exists to enable anonymous access to
        Yeti. Disable it after logging in as a new user if you only want to
        allow authenticated access.
      </p>
        <form method="post" action="{{ url_for("auth.new_user") }}">
          <div class="form-group">
              <input type="text" class="form-control" name="username" placeholder="Username" required/>
          </div>
          <div class="form-group">
              <input type="password" name="password" id="password" class="form-control" placeholder="Password" required>
          </div>
          <div class="form-group">
              <input type="checkbox" name="admin"> <label for="admin">Add as admin</label>
          </div>
          <div class="pull-right">
              <input class="btn btn-primary btn-sm" type="submit" name="" value="Add user">
          </div>
        </form>
    </div>
  </div>
</div>

Make panel visible by default
Make panel visible by default
