效果图：

<div class="father"><div class="success-box" v-if="isSuccess"><img src="../../assets/insure/success-logo.png" alt=""><span>{{ successTitle }}</span></div>
</div>.father{position: relative;}.success-box {width: 130px;height: 130px;border-radius: 8px;background: rgba(64, 64, 64, 0.88);display: flex;justify-content: center;flex-direction: column;align-items: center;gap: 21px;position: absolute;top: 50%;left: 50%;margin-left: -65px;margin-top: -65px;color: #FFF;text-align: center;font-family: "PingFang SC";font-size: 14px;font-style: normal;font-weight: 600;line-height: normal;}