Messagebar does not resize

Hello there!

I copied a code from Messagebar Auto Initialization and added class="resizable". But it does not work.

My code:

<template>
  <div class="page page-master-detail page-master-detail-root">

    <div class="navbar">
      <div class="navbar-bg"></div>
      <div class="navbar-inner">
        <div class="title">Messages</div>
      </div>
    </div>

    <div class="toolbar messagebar messagebar-init" data-max-height="200">
      <div class="toolbar-inner">
        <div class="messagebar-area">
          <textarea class="resizable" placeholder="Message"></textarea>
        </div>
        <a href="#" class="link">Send</a>
      </div>
    </div>

    <div class="page-content messages-content">
      ... messages
    </div>
  </div>
</template>

Result:

You have copied something wrong, here is the correct example https://framework7.io/docs/messagebar.html#examples

Vladimir, thank you for your response!

I checked twice but it still does not work. I mean my messagebar is not resizable.
I tried messagebar-init class on messagebar element (code in the first message) and creating messagebar after pageInit event:

<template>
  <div class="page">
    <div class="toolbar messagebar">
      <div class="toolbar-inner">
        <div class="messagebar-area">
          <textarea class="resizable" placeholder="Message"></textarea>
        </div>
        <a class="link" href="#">Send</a>
      </div>
    </div>
  </div>
</template>

<script>
export default (props, {$f7, $on}) => {
  $on('pageInit', () => {
    messagebar = $f7.messagebar.create({
        el: '.messagebar',
        maxHeight: 200,
      });
  });

  return $render;
}
</script>

I use a framework7 v6.0.4 and Chrome v87.0.4280.141 (x86_64)

Please let me know what is wrong with my code above.
Thank you for your help!