stom-template="amp-mustache" src="https://cdn.ampproject.org/v0/amp-mustache-0.2.js"></script>
  <style amp-custom>
    h1 {
      margin-bottom: 1rem;
      letter-spacing: inherit;
      font-family: inherit;
      font-size: 1.5rem;
      line-height: 2rem;
    }

    .buttons {
      display: flex;
    }

    .bookmark {
      margin-left: 1rem;
      display: flex;
      align-items: center;
    }

    .link {
      display: block;
    }

    .bookmark form.amp-form-submit-success button {
      displa