鼠标移入图片展示遮罩层 遮罩层上有按钮

    <div class="img-container">
      <div class="custom-upload-success"><i class="el-icon-check"></i></div>
      
      <img :src="imgObj.url" alt="图片"> </img>
      <div class="overlay">
        <i class="el-icon-circle-plus-outline mr-3" @click="handlePictureCardPreview(imgObj)"></i>
        <i class="el-icon-upload"></i>
      </div>
    </div>

.img-container {
  position: relative;
  width: 160px;
  height: 100px;
  color: white;
  overflow: hidden;
  border-radius: 4px;
  .custom-upload-success {
    position: absolute;
    right: -15px;
    top: -6px;
    width: 40px;
    height: 24px;
    background: #13ce66;
    text-align: center;
    transform: rotate(45deg);
    box-shadow: 0 0 1pc 1px rgba(0, 0, 0, 0.2);
    i {
      transform: rotate(-45deg);
      vertical-align:baseline;
      font-size: 0.9rem;
    }
  }

  img {
    width: 160px;
    height: 100px;
    object-fit: cover;
    border-radius: 4px;
  }

  .overlay {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    i {
      font-size: 1.3rem;
      cursor: pointer;
    }
  }
}

.overlay:hover {
  opacity: 1;
}