<div class="container">
  <div class="row">
    <div class="col-md-4">
      <ul class="list-group">
  <li class="list-group-item">Cras justo odio</li>
  <li class="list-group-item">Dapibus ac facilisis in</li>
  <li class="list-group-item">Morbi leo risus</li>
  <li class="list-group-item">Porta ac consectetur ac</li>
  <li class="list-group-item">Vestibulum at eros</li>
</ul>
    </div>
    <div class="col-md-8">
      <div class="row">
        <div class="col-md-4 mb-3">
          <div class="card h-100">
    <img src="https://upload.cc/i1/2020/12/24/6CAbc3.jpg" class="card-img-top" alt="...">
    <div class="card-body">
      <h5 class="card-title">Card title</h5>
      <p class="card-text">This is a wider card with </p>
    </div>
    <div class="card-footer text-center">
      <div class="btn-group">
        <a href="" class="btn btn-outline-primary">SM</a>
        <a href="" class="btn btn-outline-primary disabled">M</a>
        <a href="" class="btn btn-outline-primary">L</a>
      </div>
    </div>
  </div>
        </div>
        <div class="col-md-4 mb-3">
          <div class="card h-100">
    <img src="https://upload.cc/i1/2021/01/14/g4aPUC.jpg" class="card-img-top" alt="...">
    <div class="card-body">
      <h5 class="card-title">Card title</h5>
      <p class="card-text">This is a wider card with </p>
    </div>
    <div class="card-footer">
      <a href="" class="btn btn-primary d-block">結帳去</a>
    </div>
  </div>
        </div>
        <div class="col-md-4 mb-3">
          <div class="card h-100">
    <img src="https://upload.cc/i1/2020/12/24/6CAbc3.jpg" class="card-img-top" alt="...">
    <div class="card-body">
      <h5 class="card-title">Card title</h5>
      <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    </div>
    <div class="card-footer">
      <a href="" class="btn btn-primary d-block">結帳去</a>
    </div>
  </div>
        </div>
        <div class="col-md-4 mb-3">
          <div class="card">
    <img src="https://upload.cc/i1/2020/12/24/6CAbc3.jpg" class="card-img-top" alt="...">
    <div class="card-body">
      <h5 class="card-title">Card title</h5>
      <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
    </div>
    <div class="card-footer">
      <a href="" class="btn btn-primary d-block">結帳去</a>
    </div>
  </div>
        </div>
      </div>
    </div>
  </div>
</div>

.btn_cart{
  background: transparent;
  position: relative;
  border:1px solid transparent;
}
.btn_cart .badge{
  position: absolute;
  top:-1px;
  right:-1px;
}
.dropdown-menu-end{
  right:0;
  left: auto;
}
.jumbotron_bg{
 background-image: url("https://upload.cc/i1/2021/01/14/PMgNkr.jpg");
  background-size:cover;
  background-position: center center;
}
.header_bg{
  background:rgba(255, 255, 255, 0.45);
}

External CSS

  1. https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css
  2. https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js
  3. https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js