CSS关键帧不会完全移出屏幕，尽管100%转换tx设置为-100%

Question

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// Sample items to add to the news-ticker
let sampleNewsItems = [
  "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
  "Vivamus enim magna, elementum in consectetur sit amet, porta ut eros"
];

// Iterate through the sample news items and process accordingly
let nextTimeoutDur;
for (let x = 0; x < sampleNewsItems.length; x++) {
  let screenWidth = $(window).innerWidth();
  $('.ticker-wrap').width(screenWidth);

  $(".ticker-wrap").append('<div class="ticker-item" data-index="' + x + '"><span class="tickerContent"></span></div>');
  $('.ticker-item[data-index="' + x + '"] .tickerContent').html(sampleNewsItems[x]);

  let newsItemLength = 500;
  $('.ticker-item[data-index="' + (x - 1) + '"]').outerWidth(500);

  let tickerDur = 7;
  nextTimeoutDur = x > 0 ? (tickerDur * newsItemLength) / screenWidth : 0;

  $(".ticker-item[data-index=" + x + "]").css("animation", "ticker " + tickerDur + "s  linear " + nextTimeoutDur + "s  infinite");
}

@keyframes ticker {
  0% {
    transform: translate3d(100vw, 0, 0);
    visibility: visible;
  }
  100% {
    transform: translate3d(-100%, 0, 0);
  }
}

.ticker-wrap {
  width: 100%;
}

.ticker-wrap .ticker-item {
  display: inline-block;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="ticker-wrap"></div>

​

我想让第二个滚动条项目在它消失之前完全离开视口，这就是为什么我将transform: translate3d(-100%, 0, 0);设置为100%的关键帧。但是，第一个滚动条一消失，第二个滚动条就会从视口中消失。为何会这样呢？我怎么才能修复它呢？

Here is a CodePen with my code.

https://codepen.io/prizzi13/pen/JwGmGE

Answer 1

.ticker-item的position应为absolute