Waterfall flow layout of uni app Homepage

<view class="pubuBox">
						<view class="pubuItem">
							<view class="item-masonry" v-for="(item, index) in hotSalesList" :key="index" @tap="clickRight(item)">
								<view class="positions">
									<image :src="item.pic" mode="widthFix"></image>
									<view class="city">{
   {item.city}}</view>
								</view>
								<view class="listtitle"> -->
									<view class="listtitle1">{
   { item.prodName }}</view>
									<view class="listtitle2">
										{
   { item.registerDate }}/{
   {item.mileage}}km
									</view>
									<view class="listtitle3">
										<view class="price">
											<text class="symbol">￥</text>
											<text class="big-num">{
   {parsePrice(item.oriPrice)[0]}}</text>
											<text class="small-num">.{
   {parsePrice(item.oriPrice)[1]}}</text>
										</view>
									</view>
								</view>
							</view>
						</view>
					</view>

.pubuBox {
    
		padding: 22rpx;
	}
	.pubuItem {
    
		column-count: 2;
		column-gap: 20rpx;
	}
	.item-masonry {
    
		box-sizing: border-box;
		border-radius: 15rpx;
		overflow: hidden;
		background-color: #fff;
		break-inside: avoid;
		/* Avoid inserting page breaks inside elements */
		box-sizing: border-box;
		margin-bottom: 20rpx;
		box-shadow: 0px 0px 28rpx 1rpx rgba(78, 101, 153, 0.14);
	}
	.city {
    
		width: 100%;
		position: absolute;
		bottom: 10rpx;
		text-align: center;
		font-size: 24rpx;
		font-weight: 400;
		color: #FFFFFF;
	}
	.item-masonry .positions {
    
		width: 100%;
		position: relative;
	}
	.positions image {
    
		width: 100%;
	}
	.listtitle {
    
		padding-left: 22rpx;
		/* font-size: 24rpx; */
		padding-bottom: 22rpx;
	}
	.listtitle1 {
    
		line-height: 39rpx;
		text-overflow: -o-ellipsis-lastline;
		overflow: hidden;
		text-overflow: ellipsis;
		display: -webkit-box;
		-webkit-line-clamp: 2;
		line-clamp: 2;
		-webkit-box-orient: vertical;
		min-height: 39rpx;
		max-height: 78rpx;
		font-size: 30rpx;
		font-weight: 400;
		color: #333333;
		padding-top: 20rpx;
	}
	.listtitle2 {
    
		font-size: 26rpx;
		font-weight: 400;
		color: #666666;
		margin-top: 12rpx;
	}
	.listtitle2son {
    
		font-size: 26px;
		font-weight: 400;
		color: #666666;
	}
	.listtitle3 {
    
		font-size: 28rpx;
		color: #909399;
		line-height: 32rpx;
		padding-top: 18rpx;
	}
	.Index {
    
		width: 100%;
		height: 100%;
	}