CSS动画行悬停增长

Question

我有一个悬停时需要动画的按钮。下图显示了单词“阅读更多”，我希望右侧的黄线扩展到悬停时当前大小的百分之五十左右。

<a href="#" class="read_more">Read More </a> .read_more { font-family: "Gotham SSm A", "Gotham SSm B"; font-size: 20px; color: #002c77; letter-spacing: 0; text-align: center; line-height: 28px; font-weight: bold; text-transform: uppercase; } .read_more::after { content: "\2014"; color: #fcd450; }

Answer 1

伪代码，因为它看起来好像没有任何东西，但是

.line {
  width: 100px;
  transition: width .5s ease-in-out;
}
.line:hover {
  width: 150px;
}

Answer 2

请参阅下文。希望这会有所帮助

.read_more {
  font-family: "Gotham SSm A", "Gotham SSm B";
  font-size: 20px;
  color: #002c77;
  letter-spacing: 0;
  text-align: center;
  line-height: 28px;
  font-weight: bold;
  text-transform: uppercase;
}

div {
  position: relative;
  display: inline-block;
}

div:after {
  content: "";
  height: 3px;
  width: 20px;
  background-color: red;
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
}

div:hover:after {
  width: 30px;
  right: -30px;
}

<div><a href="#" class="read_more">Read More</a></div>

Answer 3

根据您自己的代码，我认为这可以实现您的追求！ ：）

一旦将其粘贴到您自己的项目中，字体和其他字体将不起作用。

.read_more {
  font-family: "Gotham SSm A", "Gotham SSm B";
  font-size: 20px;
  color: #002c77;
  letter-spacing: 0;
  text-align: center;
  line-height: 28px;
  font-weight: bold;
  text-transform: uppercase;
}

.read_more:after {
  content: '';
  position: relative;
  display: inline-block;
  width: 20px;
  height: 2px;
  vertical-align: top;
  margin-top: 12px;
  background-color: #fcd450;
  transition: width 0.3s ease;
}
.read_more:hover:after {
  width: 30px;
}

<a href="#" class="read_more">Read More </a>