<div class="accordion" id="accordionPanelsStayOpenExample">
  <div class="accordion-item">
    <h2 class="accordion-header" id="panelsStayOpen-headingOne">
      <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#panelsStayOpen-collapseOne" aria-expanded="true" aria-controls="panelsStayOpen-collapseOne">
        Accordion Item #1
      </button>
    </h2>
    <div id="panelsStayOpen-collapseOne" class="accordion-collapse collapse show" aria-labelledby="panelsStayOpen-headingOne">
      <div class="accordion-body">
        <strong>This is the first item's accordion body.</strong> It is shown by default, until the collapse plugin adds the appropriate classes that we use to style each element. These classes control the overall appearance, as well as the showing and hiding via CSS transitions. You can modify any of this with custom CSS or overriding our default variables. It's also worth noting that just about any HTML can go within the <code>.accordion-body</code>, though the transition does limit overflow.
      </div>
    </div>
  </div>
  <div class="accordion-item">
    <h2 class="accordion-header" id="panelsStayOpen-headingTwo">
      <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#panelsStayOpen-collapseTwo" aria-expanded="false" aria-controls="panelsStayOpen-collapseTwo">
        Accordion Item #2
      </button>
    </h2>
    <div id="panelsStayOpen-collapseTwo" class="accordion-collapse collapse" aria-labelledby="panelsStayOpen-headingTwo">
      <div class="accordion-body">
        <strong>This is the second item's accordion body.</strong> It is hidden by default, until the collapse plugin adds the appropriate classes that we use to style each element. These classes control the overall appearance, as well as the showing and hiding via CSS transitions. You can modify any of this with custom CSS or overriding our default variables. It's also worth noting that just about any HTML can go within the <code>.accordion-body</code>, though the transition does limit overflow.
      </div>
    </div>
  </div>
  <div class="accordion-item">
    <h2 class="accordion-header" id="panelsStayOpen-headingThree">
      <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#panelsStayOpen-collapseThree" aria-expanded="false" aria-controls="panelsStayOpen-collapseThree">
        Accordion Item #3
      </button>
    </h2>
    <div id="panelsStayOpen-collapseThree" class="accordion-collapse collapse" aria-labelledby="panelsStayOpen-headingThree">
      <div class="accordion-body">
        <strong>This is the third item's accordion body.</strong> It is hidden by default, until the collapse plugin adds the appropriate classes that we use to style each element. These classes control the overall appearance, as well as the showing and hiding via CSS transitions. You can modify any of this with custom CSS or overriding our default variables. It's also worth noting that just about any HTML can go within the <code>.accordion-body</code>, though the transition does limit overflow.
      </div>
    </div>
  </div>
</div>

<div class="accordion">
  <div class="accordion-item">
    <h2 id="prod" class="accordion-header">
      <button data-bs-target="#prod05" aria-controls="prod05" class="accordion-button" type="button" data-bs-toggle="collapse" aria-expanded="true">商品情報</button>
    </h2>
    <div id="prod05" aria-labelledby="prod" class="accordion-collapse collapse show">
      <div class="accordion-body">
      <h3 class="h5">イネ科の植物3号4号の5個セット</h3>
      <p>ネコの毛玉ケアと便秘解消用の植物です。</p>

      <ul>
        <li>【ネコが食べても安心】<br>ネコが食べても安心な植物です。</li>
        <li>【観葉植物としても】<br>インテリアのアクセントにもなります。</li>

      </ul>
      </div>
    </div>
  </div>
  <div class="accordion-item">
    <h2 id="size" class="accordion-header">
      <button data-bs-target="#size05" aria-controls="size05" class="accordion-button collapsed" type="button" data-bs-toggle="collapse" aria-expanded="false">サイズ</button>
    </h2>
    <div id="size05" aria-labelledby="size04" class="accordion-collapse collapse">
      <div class="accordion-body">
       <h3 class="h5">サイズ</h3>
      <ul>
        <li>【4号植物】鉢底より約15～40cm</li>
        <li>【3号植物】鉢底より約10～15cm</li>
        <li>【ブランド】SakuWeb</li>
      </ul>
      </div>
    </div>
  </div>
</div> 

<div class="container-fluid my-5">
  <div class="row">
    <div class="room-end">
      <div class="writing-v ms-4"><span>ネコと快適に暮らすため</span><span>考えぬかれたインテリアを選ぼう</span></div>
    </div>
  </div>
</div>

.room-end {
  background: url(../img/room03.webp) no-repeat top 50px center / cover;
  padding-bottom: 8rem;
}
.room-end .writing-v span{
  display: table;
  padding: 1rem .1rem;
  margin: 1rem;
  line-height: 2.5rem;
  background:black;
}
.room-end .writing-v{
  background: none;
}