无限的图像滚动条过渡故障不循环

Question

我无法正确定义我面临的异常错误我创建了图像滑块，这是我使用CSS制作的无限图像滚动器，但是在重置了滑块的最后一个图像之后完成图像时，我面临的问题是弄乱了过渡，无法正确循环，下面是我张贴的小提琴的链接

请帮助我解决这个问题，您可以观看一下，看看它如何重置而不是连续循环

.slider-area {
  width: 100%;
  overflow: hidden;
}
.slider {
    width: 200%; 
    display: inline-flex;
    margin:10px auto;
    transition: ease-in-out all 26s;
    -moz-transition: ease-in-out all 26s;
    -ms-transition: ease-in-out all 26s;
    -webkit-transition: ease-in-out all 26s;
}

.sec-slide-1 {
    animation: bannermove 26s linear infinite;
}

.slider > div {
  display: flex;
  width: auto;
  white-space: nowrap;
}

.slider > div > ul {
  list-style-type: none;
  padding-left: 0;
  margin: 0;
}

.slider > div > ul > li {
    width: 23vw;
    margin: 0 8px;
    display: inline-block;
    vertical-align: middle;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.slider > div > ul > li > img {
    width: 100%;
    height: 100%;
    transition: ease-in-out all .3s;
    -webkit-transition: ease-in-out all .3s;
    -moz-transition: ease-in-out all .3s;
    filter: grayscale(1);
}

.slide-more {
    display: block;
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    line-height: 60px;
    border-radius: 50%;
    background-color: #d59003;
    text-align: center;
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: ease-in-out all .6s;
    -webkit-transition: ease-in-out all .6s;
    -moz-transition: ease-in-out all .6s;
    opacity: 0;
}

.slider > div > ul > li:hover > img {
    filter: grayscale(0);
}

.slider > div > ul > li:hover > .slide-more {
    top: 50%;
    opacity: 1;
}

.slider > div > ul > li:hover > .slide-more:hover {
    text-decoration: none;
}

@keyframes bannermove {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

<section class="slider-area">
<div class="slider sec-slide-1">
        <div>
            <ul>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-1.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-2.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-3.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-4.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-5.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-6.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-7.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-8.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
            </ul>
        </div>
        <div>
            <ul>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-1.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-2.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-3.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-4.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-5.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-6.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-7.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-8.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
            </ul>
        </div>
        <div>
            <ul>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-1.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-2.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-3.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-4.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-5.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-6.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-7.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-8.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
            </ul>
        </div>
        <div>
            <ul>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-1.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-2.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-3.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-4.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-5.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-6.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-7.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
                <li>
                    <img src="http://rootdiamonds.com/demo/img/slider-1/africa-8.jpg">
                    <a href="#" class="slide-more">
                        More
                    </a>
                </li>
            </ul>
        </div>
    </div>
  </section>