VUE环境下 CSS3+JS 实现发牌 翻牌

创建牌容器（关键点：overflow：hidden）：

<div class="popup-box"></div>

.popup-box {position: absolute;width: 100vw;height: 100vh;top: 0px;left: 0;overflow: hidden;
}

创建每一张牌《固定十张牌》：

1.父级（卡牌未放开显示背景） 卡牌子级（显示卡牌内容）

<div class="popup-box-card" :class="['popup-box-card-cws' + index, item.show && 'popup-box-card' + index]" v-for="(item, index) in cardList"><div class="popup-top-box-card-son":class="[item.show && 'popup-box-card-son-rotate']"><div class="popup-box-card-son-box"><img :src="item.Url"><div>Name</div><div>Describe</div></div></div>
</div>

.popup-top-box-card {position: absolute;background: url('https://oss-test.newplay7.com/20221213/16709168590023654.png') no-repeat;background-size: 100% 100%;transform: scale(0.51) rotateY(0deg);margin-top: 0;left: 210px;top: calc(100vh - 400px);transition: all 0.2s;}.popup-top-box-card-son {width: 100%;height: 100%;background: url('https://gd-hbimg.huaban.com/7057f0b053d03b1e3034f902ad252edd6c930fbef8d15-GA6eJ7_fw658') no-repeat;background-size: 100% 100%;opacity: 0;transform: rotateY(180deg);
}

初始化牌位置：

  .popup-top-box-card-cws1,.popup-top-box-card-cws4,.popup-top-box-card-cws7 {left: 230px;}.popup-top-box-card-cws2,.popup-top-box-card-cws5,.popup-top-box-card-cws8 {left: 220px;}

 开始发牌：

1.通过变量show来控制 添加 'popup-top-box-card' + index 给牌Class 改变position top left  实现发牌动作  rotateY(180deg) 实现翻牌动作

2.通过变量show来控制卡牌子级 添加 ‘popup-box-card-son-rotate’ opacity 延迟0.05s显示0.2s卡牌内容

JS 发牌方法

const addCardAnimation = (inx: number, arr: CardItemType[]) => {return new Promise(revele => {arr[inx] = { ...arr[inx], show: true}cardList.value = arrsetTimeout(() => {revele(true)}, 400)})
}for (let i = 0; i < cardList.value.length; i++) {await addCardAnimation(i, cardList.value)
}