背景图片前后的CSS悬停

Question

当您将鼠标悬停在图片上时，蓝色箭头会缓慢移动。当您从图像上删除光标时，白色箭头会急剧返回。如何使白色箭头缓慢返回？

@keyframes left_to_right {
    from {margin-left: -15px;}
    to {margin-left: 0; }
}
div .footer-text{
    position: absolute;
    top: 10%;
    left: 3%;
    height: 20px;
    width: 85%;
}
div .footer-text:after{
    content: '';
    background: url('https://www.nsartmuseum.ru/images/test/arrow-after-3.png') no-repeat;
    width: 130px;
    height: 15px;
    display: inline-block;
    margin-left: 10px;
    position: relative;
}
div:hover .footer-text:before{
    content: '';
    background: url('https://www.nsartmuseum.ru/images/test/arrow-before-3.png') no-repeat;
    width: 130px;
    height: 15px;
    margin-right: 5px;
    display: inline-block;
    animation: left_to_right 0.4s ease;
}
div:hover .footer-text:after{
    content: '';
    background: none;
}
div .footer-text span{
    position: relative;
    top:-5px;
    font-size: 12px;
    color: #313B78;
    display: inline-block;
}

<div>
<a href="" class='footer-text'>
  <span>13 September</span>
</a>
</div>

很明显，有很多方法可以通过CSS动画来做到这一点，但是我在开发中从未使用过。

Answer 1

希望对您有帮助。

@keyframes left_to_right {
  from {
    margin-left: -15px;
  }
  to {
    margin-left: 0;
  }
}

div .footer-text {
  position: absolute;
  top: 10%;
  left: 3%;
  height: 20px;
  width: 85%;
}

div .footer-text:after {
  content: '';
  background: url('https://www.nsartmuseum.ru/images/test/arrow-after-3.png') no-repeat;
  width: 130px;
  height: 15px;
  display: inline-block;
  margin-left: 10px;
  position: relative;
  animation: left_to_right 0.4s ease;
}

div:hover .footer-text:before {
  content: '';
  background: url('https://www.nsartmuseum.ru/images/test/arrow-before-3.png') no-repeat;
  width: 130px;
  height: 15px;
  margin-right: 5px;
  display: inline-block;
  animation: left_to_right 0.4s ease;
}

div:hover .footer-text:after {
  display: none;
}

div .footer-text span {
  position: relative;
  top: -5px;
  font-size: 12px;
  color: #313B78;
  display: inline-block;
}

<div>
  <a href="" class='footer-text'>
    <span>13 September</span>
  </a>
</div>