CSS动画突然移动

Question

我有以下JS小提琴：https://jsfiddle.net/ur9bpgbn/163/

.arrow {
  position: absolute;
  font-size: 16px;
  max-width: 350px;
  background: #FFF;
  height: 40px;
  line-height: 40px;
  margin-bottom: 20px;
  text-align: center;
  color: #000;
  box-shadow: 3px 5px 5px rgba(0, 0, 0, 0.2);
  visibility: hidden;
  opacity: 0;
  transition: visibility 0s, opacity 0.3s ease-in-out;
  z-index: 999;
}
.arrow.active {
  visibility: visible;
  opacity: 1;
}
.arrow.active.animate-left-to-right {
  animation-name: move-left-to-right;
  animation-duration: 1s;
  animation-delay: 0.6s;
  animation-iteration-count: infinite;
  animation-direction: alternative;
}
.arrow.active.animate-right-to-left {
  animation-name: move-right-to-left;
  animation-duration: 1s;
  animation-delay: 0.6s;
  animation-iteration-count: infinite;
  animation-direction: alternative;
}
@keyframes move-left-to-right {
  0% {
    transform: translateX (5%);
    box-shadow: 3px 5px 5px rgba(0, 0, 0, 0.2);
  }
  50% {
    transform: translateX(15%);
    box-shadow: 3px 5px 5px rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: translateX(5%);
    box-shadow: 3px 5px 5px rgba(0, 0, 0, 0.2);
  }
}
@keyframes move-right-to-left {
  0% {
    transform: translateX(-5%);
    box-shadow: -3px 5px 5px rgba(0, 0, 0, 0.2);
  }
  50% {
    transform: translateX(-15%);
    box-shadow: -3px 5px 5px rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: translateX(-5%);
    box-shadow: -3px 5px 5px rgba(0, 0, 0, 0.2);
  }
}
/*right arrow*/
.arrow-right {
  border-radius: 0px 0px 0 0px;
  background: linear-gradient(to right, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0.7));
}
.arrow-right:after {
  content: "";
  position: absolute;
  right: -20px;
  top: 0;
  border-top: 20px solid transparent;
  border-bottom: 20px solid transparent;
  border-left: 20px solid #FFF;
  opacity: 0.7;
}
.arrow-right:before {
  content: "";
  position: absolute;
  left: -20px;
  top: 0;
  border-top: 0px solid transparent;
  border-bottom: 40px solid transparent;
  border-right: 20px solid #FFF;
  opacity: 1;
}
/*left arrow*/
.arrow-left {
  border-radius: 0 0px 0px 0;
  background: linear-gradient(to left, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0.7));
}
.arrow-left:before {
  content: "";
  position: absolute;
  left: -20px;
  top: 0;
  border-top: 20px solid transparent;
  border-bottom: 20px solid transparent;
  border-right: 20px solid #FFF;
  opacity: 0.7;
}
.arrow-left:after {
  content: "";
  position: absolute;
  right: -20px;
  top: 0;
  border-top: 0px solid transparent;
  border-bottom: 40px solid transparent;
  border-left: 20px solid #FFF;
  opacity: 1;
}

<div id="app">
  <a href="https://sporedev.ro" target="_blank">
    <div href="#" class="arrow arrow-right animate-right-to-left">This is a text</div>
  </a>
  <div href="#" class="arrow arrow-left animate-left-to-right" style="margin-top:30%; margin-left:30%;"><span class="room-desc">This is a text</span></div>
</div>

移动到右侧的箭头工作得很好。

左侧的箭头有某种故障，当它到达过渡结束时会突然移动。

我尝试在与左箭头相关的所有内容中对 CSS 进行更改，但没有效果。该脚本有一些添加"活动"类的 JS，我尝试删除它以简化脚本并确保它不是与 JS 相关的问题，没有任何效果。

尝试阅读过渡，但我没有找到任何解决方案。我确定我错过了一些与 CSS 相关的东西。

如何使指向左侧的箭头平滑移动？

Answer 1

将此部分transform: translateX (5%);更新为transform: translateX (0%);

@keyframes move-left-to-right {
  0% {
    transform: translateX (0%);
    box-shadow: 3px 5px 5px rgba(0, 0, 0, 0.2);
  }
  50% {
    transform: translateX(15%);
    box-shadow: 3px 5px 5px rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: translateX(0%);
    box-shadow: 3px 5px 5px rgba(0, 0, 0, 0.2);
  }
}

https://jsfiddle.net/ur9bpgbn/168/

我相信小跳跃是 0-5%，它没有动画，所以它只是跳跃