html - 自定义悬停效果位置问题

Question

我试图将按钮放置在距离屏幕水平中心 10 像素的位置。这是按钮代码。该按钮使用了一些奇特的悬停效果，它不随按钮移动。如何将按钮放置在屏幕水平中心 10px 之外？

body {
  background-color: green;
}
.button-2 {
  width: 140px;
  height: 50px;
  border: 2px solid white;
  float: left;
  text-align: center;
  cursor: pointer;
  position: relative;
  box-sizing: border-box;
  overflow: hidden;
  margin: 0 0 40px 50px;
}
.button-2 a {
  font-family: arial;
  font-size: 16px;
  color: white;
  text-decoration: none;
  line-height: 50px;
  transition: all .5s ease;
  z-index: 2;
  position: relative;
}
.eff-2 {
  width: 140px;
  height: 50px;
  top: -50px;
  background: white;
  position: absolute;
  transition: all .5s ease;
  z-index: 1;
}
.button-2:hover .eff-2 {
  top: 0;
}
.button-2:hover a {
  color: #666;
}
.watch-video-position {}

<div class="watch-video-position">
  <div class="button-2 watch-video-position">
    <div class="eff-2 watch-video-position"></div>
    <a href="#"> CLICK ME </a>
  </div>
</div>

Answer 1

I have made some changes in the css to class button-2.
.button-2 {
      float: none;
      margin: 0 auto;
      top: 10px;
    }

body {
      background-color: green;
    }
    .button-2 {
      border: 2px solid white;
      box-sizing: border-box;
      cursor: pointer;
      float: none;
      height: 50px;
      margin: 0 auto;
      overflow: hidden;
      position: relative;
      text-align: center;
      top: 10px;
      width: 140px;
    }
    .button-2 a {
      font-family: arial;
      font-size: 16px;
      color: white;
      text-decoration: none;
      line-height: 50px;
      transition: all .5s ease;
      z-index: 2;
      position: relative;
    }
    .eff-2 {
      width: 140px;
      height: 50px;
      top: -50px;
      background: white;
      position: absolute;
      transition: all .5s ease;
      z-index: 1;
    }
    .button-2:hover .eff-2 {
      top: 0;
    }
    .button-2:hover a {
      color: #666;
    }
    .watch-video-position {}

<div class="watch-video-position">
      <div class="button-2 watch-video-position">
        <div class="eff-2 watch-video-position"></div>
        <a href="#"> CLICK ME </a>
      </div>
    </div>