Question

基本上我有这种布局，我试图使带有边框的三角形出现在悬停上。

ul {
  background: #ccc;
  padding: 20px;
}

ul li {
  display: inline-block;
  padding: 20px;
}

ul a {
text-decoration: none;
}

ul li:hover a {
border-bottom: 1px solid white;
}

<ul>
<li><a href="">About</a></li>
<li><a href="">shop</a></li>
<li><a href="">contact</a></li>

</ul>

Answer 1

您可以使用css pseudo元素来实现此目的。检查代码段。

ul {
  background: #ccc;
  padding: 20px;
}

ul li {
  display: inline-block;
  padding: 20px;
  position: relative;
}

ul a {
  text-decoration: none;
}

ul li:hover a {
  border-bottom: 1px solid white;
}

ul li:hover a:after {
  content: '';
  position: absolute;
  bottom: 15px;
  left: 0;
  right: 0;
  margin: 0 auto;
  width: 0;
  height: 0;
  border-top: solid 5px #fff;
  border-left: solid 5px transparent;
  border-right: solid 5px transparent;
}

<ul>
  <li><a href="">About</a></li>
  <li><a href="">shop</a></li>
  <li><a href="">contact</a></li>

</ul>

Answer 2

ul {
  background: #ccc;
  padding: 20px;
}

ul li {
  display: inline-block;
  padding: 20px;
  position: relative;
}

ul a {
  text-decoration: none;
}

ul li:hover a {
  border-bottom: 1px solid white;
  position: relative;
}

ul li:hover a::after {
  position: absolute;
  content: "";
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 8px solid white;
  left: 39%;
  top: 18px;
}

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>
<ul>
<li><a href="">About</a></li>
<li><a href="">shop</a></li>
<li><a href="">contact</a></li>

</ul>
</body>
</html>

悬停在底部的三角形边框

2 个答案: