我试着把两张相互堆叠的图片放在一张完整的图片旁边，就像下面的图片--我试着把这两张相互堆叠的图片放在另一张单独的图片旁边。

谁能帮我这个。我不知道它的flexbox或我应该使用定位来解决这个问题，因为图像被卡在下面，我试图使图像向上，也使他们对齐的权利旁边的孤立的图像（注:我试过定位，但由于某些原因没有工作）

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.lone-image {
  display: flex;
}

.images {
  background-size: cover;
  background-image: url(xii.jpg);
  width: 45%;
  height: 520px;
  position: relative;
  left: 50px;
}

.Xiaomi h1 {
  position: absolute;
  color: white;
  font-weight: normal;
  font-size: 40px;
  bottom: 70%;
  right: 60%;
}

.xiaomi-text {
  color: white;
  position: absolute;
  top: 25%;
  left: 6%;
  font-size: 12px;
}

.Buy-now button {
  background-color: #706c6c;
  color: white;
  font-size: 16px;
  padding: 6px 12px;
  border: none;
  position: absolute;
  bottom: 60%;
  right: 76%;
}

.images2 {
  background-image: url(canon.jpg);
  background-size: cover;
  width: 37%;
  height: 280px;
  position: relative;
  margin-bottom: 10px;
}

.Canon h1 {
  font-weight: normal;
  font-size: 40px;
  position: absolute;
  top: 40px;
  left: 15px;
}

.button2 button {
  color: white;
  background-color: #706c6c;
  padding: 6px 12px;
  border: none;
  position: absolute;
  font-size: 16px;
  top: 150px;
  left: 15px;
}

.images3 {
  background-image: url(dell.jpg);
  background-size: cover;
  width: 37%;
  height: 280px;
  flex-wrap: wrap;
}

.stacked-image {
  display: flex;
  flex-flow: column;
  align-items: flex-end;
}

<div class="lone-image">
  <div class="images">
    <div class="Xiaomi">
      <h1> Xiaomi X15</h1>
    </div>

    <div class="Buy-now">
      <button> BUY NOW</button>
    </div>
    <div class="xiaomi-text">
      <p> Discover your passion in the phone of dreams so order now</p>
    </div>
  </div>
</div>

<div class="stacked-image">
  <div class="images2">
    <div class="Canon">
      <h1>CANON MP56 </h1>
    </div>
    <div class="button2">
      <button> BUY NOW</button>
    </div>
  </div>

  <div class="images3">
    <div class="Dell">
      <h1>Dell X5-MWS</h1>
    </div>
    <div class="button3">
      <button> BUY NOW</button>
    </div>
  </div>
</div>

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