SOURCE

<div class="box">
    <div class="lucky">
        <div class="item">1</div>
        <div class="item">2</div>
        <div class="item">3</div>
        <div class="item">4</div>
        <div class="item">5</div>
        <div class="item">6</div>
        <div class="item">1</div>
    </div>
</div>

.box {
    width: 200px;
    height: 100px;
    border: 1px solid pink;
    margin: 100px auto;
    overflow: hidden;
    border-radius: 10px;
}

.item {
    width: 150px;
    height: 100px;
    color: brown;
    margin: 0 auto;
    text-align: center;
    line-height: 100px;
    background: peachpuff;
    border-radius: 16px;
}

.lucky {
    animation: lucky 10s forwards infinite linear;
}

.item:nth-child(odd) {
    background: rgb(255, 208, 0)
}

@keyframes lucky {
    0% {
        transition-timing-function: linear;
        transform: translateY(-600px);
    }
    100% {
        transition-timing-function: linear;
        transform: translateY(0px);
    }
}