.iconfont {
    display: flex; /* inline-block vertical 对不齐*/
    width: 36.232rpx;
    height: 36.232rpx;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: contain;
    opacity: 0;
    transition: opacity 90ms linear;
}

.iconfont.show {
    opacity: 1;
}