是否可以使用CSS translateX(100%) 制作移动动画？

Question

在我的动画中，我喜欢使用变换。这也可以用财产来实现left/right。但我喜欢使用变换。我需要将freeze-loading-bar100% 向右移动，它应该是一个无限循环。

我怎样才能将其loading-bar向右移动100%/完全？

*,
*::before,
*::after {
  box-sizing: border-box;
}

.app-view {
  height: 200px;
  max-width: 300px;
  margin: 1rem auto;
  background-color: #fff;
  box-shadow: -2px 2px 4px 0 #e0e0e0ad, 1px -1px 9px 0 #dddddd2e;

  padding: 2rem;

  display: flex;
  align-items: center;
  justify-content: center;
}

.freeze-loading {
  position: relative;
  width: 100%;
  height: 5px;
  box-shadow: inset 1px 0px 4px 0 #ddd;
  
  /** disual purpose **/
  /** overflow: hidden; **/
  
}

.freeze-loading-bar {
  position: absolute;
  left: 0;
  width: 80px;
  height: 100%;
  background-color: rgb(0, 132, 255);
  animation: freeze-loading-bar 2s linear infinite;
}

@keyframes freeze-loading-bar {
    from {
        transform: translateX(-100px);
    }

    to {
        transform: translateX(100%);
    }
}

<div class="app-view">
  <div class="freeze-loading">
    <div class="freeze-loading-bar"></div>
  </div>
</div>

Answer 1

保持元素全宽（使用左/右），然后使用渐变着色以仅为其一部分着色。现在您可以依赖translateX(100%)任何颜色的宽度：

.freeze-loading {
  position: relative;
  width: 100%;
  max-width: 300px;
  margin: 1rem auto;
  height: 5px;
  box-shadow: inset 1px 0px 4px 0 #ddd;
  overflow: hidden;
}

.freeze-loading-bar {
  --w:80px;  /* the width of coloration */

  position: absolute;
  left: calc(-1*var(--w));
  right: 0;
  height: 100%;
  background:
   linear-gradient(rgb(0, 132, 255) 0 0) 
   0 / var(--w) 100%  
   no-repeat;
   animation: freeze-loading-bar 2s linear infinite;
}

@keyframes freeze-loading-bar {
  to {
    transform: translateX(100%);
  }
}

<div class="freeze-loading">
  <div class="freeze-loading-bar"></div>
</div>

<div class="freeze-loading">
  <div class="freeze-loading-bar" style="--w:150px;"></div>
</div>

另一种动画：

.freeze-loading {
  position: relative;
  width: 100%;
  max-width: 300px;
  margin: 1rem auto;
  height: 5px;
  box-shadow: inset 1px 0px 4px 0 #ddd;
  overflow: hidden;
}

.freeze-loading-bar {
  --w:80px; /* the width of coloration */

  position: absolute;
  left: 0;
  right: var(--w);
  height: 100%;
  background:
   linear-gradient(rgb(0, 132, 255) 0 0) 
   0 / var(--w) 100%  
   no-repeat;
   animation: freeze-loading-bar 1s linear infinite alternate;
}

@keyframes freeze-loading-bar {
  to {
    transform: translateX(100%);
  }
}

<div class="freeze-loading">
  <div class="freeze-loading-bar"></div>
</div>

<div class="freeze-loading">
  <div class="freeze-loading-bar" style="--w:150px;"></div>
</div>

另一种语法：

.freeze-loading {
  position: relative;
  width: 100%;
  max-width: 300px;
  margin: 1rem auto;
  height: 5px;
  box-shadow: inset 1px 0px 4px 0 #ddd;
  overflow: hidden;
}

.freeze-loading-bar {
  --w:80px;  /* the width of coloration */

  position: absolute;
  left: 0;
  right: 0;
  height: 100%;
  background:
   linear-gradient(rgb(0, 132, 255) 0 0) 
   0 / var(--w) 100%  
   no-repeat;
  animation: freeze-loading-bar 2s linear infinite;
  transform: translateX(calc(-1*var(--w)));
}

@keyframes freeze-loading-bar {
  to  {
     transform: translateX(100%);
  }
}

<div class="freeze-loading">
  <div class="freeze-loading-bar"></div>
</div>

<div class="freeze-loading">
  <div class="freeze-loading-bar" style="--w:150px;"></div>
</div>

还有另外一个：

.freeze-loading {
  position: relative;
  width: 100%;
  max-width: 300px;
  margin: 1rem auto;
  height: 5px;
  box-shadow: inset 1px 0px 4px 0 #ddd;
  overflow: hidden;
}

.freeze-loading-bar {
  --w:80px;  /* the width of coloration */

  position: absolute;
  right: 0;
  width:calc(100% + var(--w));
  height: 100%;
  background:
   linear-gradient(rgb(0, 132, 255) 0 0) 
   0 / var(--w) 100%  
   no-repeat;
  animation: freeze-loading-bar 2s linear infinite;
}

@keyframes freeze-loading-bar {
  to  {
     transform: translateX(100%);
  }
}

<div class="freeze-loading">
  <div class="freeze-loading-bar"></div>
</div>

<div class="freeze-loading">
  <div class="freeze-loading-bar" style="--w:150px;"></div>
</div>