Question

我有一个：在伪元素之后创建一个边框底部动画（边框从左到右），我多次使用这种技术但是这次边界出现在顶部而不是在底部由于某种原因，我弄清楚了。我尝试使用float和chaning显示类型，但没有区别。

HTML：

  <div class="search">

    <svg viewBox="0 0 485.213 485.213">

            <path d="M471.882,407.567L360.567,296.243c-16.586,25.795-38.536,47.734-64.331,64.321l111.324,111.324
                c17.772,17.768,46.587,17.768,64.321,0C489.654,454.149,489.654,425.334,471.882,407.567z"/>
            <path d="M363.909,181.955C363.909,81.473,282.44,0,181.956,0C81.474,0,0.001,81.473,0.001,181.955s81.473,181.951,181.955,181.951
                C282.44,363.906,363.909,282.437,363.909,181.955z M181.956,318.416c-75.252,0-136.465-61.208-136.465-136.46
                c0-75.252,61.213-136.465,136.465-136.465c75.25,0,136.468,61.213,136.468,136.465
                C318.424,257.208,257.206,318.416,181.956,318.416z"/>
            <path d="M75.817,181.955h30.322c0-41.803,34.014-75.814,75.816-75.814V75.816C123.438,75.816,75.817,123.437,75.817,181.955z"/>

    </svg>

    <span>Zoeken</span>

  </div>

的CSS：

.search {
  transition: 0.5s ease;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  width: 120px;
  height: 60px;
  float: left;
  display: block;
}

.search:after {
  content: '';
  display: block;
  height: 2px;
  width: 0;
  background: $main-color;
  transition: width .5s ease, background-color .5s ease;
  float: none;
}

.search:hover:after {
  width: 100%;
}

以下是问题的视觉效果。红线应该在底部。

Answer 1

在这些情况下，我通常使用position: absolute

.search {
  white-space: nowrap;
  width: 120px;
  height: 60px;
  position: relative;
}
.search svg {
  height: 100%;
}
.search:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 0;
  background: red;
  transition: width .5s ease;
}
.search:hover:after {
  width: 100%;
}

<div class="search">
    <svg viewBox="0 0 485.213 485.213">
            <path d="M471.882,407.567L360.567,296.243c-16.586,25.795-38.536,47.734-64.331,64.321l111.324,111.324
                c17.772,17.768,46.587,17.768,64.321,0C489.654,454.149,489.654,425.334,471.882,407.567z"/>
            <path d="M363.909,181.955C363.909,81.473,282.44,0,181.956,0C81.474,0,0.001,81.473,0.001,181.955s81.473,181.951,181.955,181.951
                C282.44,363.906,363.909,282.437,363.909,181.955z M181.956,318.416c-75.252,0-136.465-61.208-136.465-136.46
                c0-75.252,61.213-136.465,136.465-136.465c75.25,0,136.468,61.213,136.468,136.465
                C318.424,257.208,257.206,318.416,181.956,318.416z"/>
            <path d="M75.817,181.955h30.322c0-41.803,34.014-75.814,75.816-75.814V75.816C123.438,75.816,75.817,123.437,75.817,181.955z"/>
    </svg>
    <span>Zoeken</span>
  </div>

Answer 2

我必须删除span元素的浮动内容。

伪元素位于顶部而不是元素

2 个答案: