alert-success

bootstrap5.css

bootstrap5.css
.alert-success {
  color: #155724;
  background-color: #d4edda;
  border-color: #c3e6cb;
}
bootstrap5.css
.alert-success hr {
  border-top-color: #b1dfbb;
}
bootstrap5.css
.alert-success .alert-link {
  color: #0b2e13;
}

html bootstrap5 Sample

アラートの背景色：alert-*

  <div class="alert alert-primary" role="alert">alert-primary</div>
  <div class="alert alert-secondary" role="alert">alert-secondary</div>
  <div class="alert alert-success" role="alert">alert-success</div>
  <div class="alert alert-danger" role="alert">alert-danger</div>
  <div class="alert alert-warning" role="alert">alert-warning</div>
  <div class="alert alert-info" role="alert">alert-info</div>
  <div class="alert alert-light" role="alert">alert-light</div>
  <div class="alert alert-dark" role="alert">alert-dark</div>

アラート内にコンテンツを追加する：alert

  <div class="alert alert-success" role="alert">
    <h4 class="alert-heading">アラートのタイトル</h4>
    <p>アラートの内容</p>
    <p class="mb-0"><a href="#" class="alert-link">詳細内容へ</a></p>
    <p class="mb-0"><a href="#">問い合わせ</a></p>
  </div>