伪类target实现纯css模态框

今天看到一个纯css模态框，觉得是很牛呀

看了下用了target伪类，

一直不知道有这么神奇的伪类

。。

用法是这样的，给模态框一个id，

<div id="pop" class="overlay">

然后通过锚链接的方法

<a class="button" href="#pop">Click!</a>

点击之后，伪类的css就能发生作用了

.overlay:target {
  visibility: visible;
  opacity: 1;
}

.overlay:target > .modal {
  transform: translateY(30%) scale(0.9);
  transition-timing-function: cubic-bezier(0.8, 0, 0, 1.5);
  opacity: 1;
}

顺便把别人的源码发一下

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>CSS模态框-jq22.com</title>
<style>
html, body {
  height: 100%;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  background-color: #FAFAFB;
  color: slategrey;
}

a.button {
  text-decoration: none;
  text-align: center;
  text-shadow: 0 1px 0 #fff;
  color: steelblue;
  font-weight: 500;
  padding: 8px 15px 8px 15px;
  border: 1px solid rgba(26, 53, 71, 0.1);
  border-radius: 4px;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  transition: .25s;
  background: linear-gradient(white, ghostwhite);
}
a.button:hover {
  border: 1px solid rgba(26, 53, 71, 0.2);
  background: white;
}

.wrapper {
   600px;
  height: 100%;
  margin: auto;
  text-align: center;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  align-items: center;
  justify-content: center;
}

.overlay {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity .5s;
  visibility: hidden;
  opacity: 0;
}
.overlay:target {
  visibility: visible;
  opacity: 1;
}

.modal {
   20%;
  position: relative;
  margin: auto;
  padding: 1.5rem;
  background: #fff;
  border-radius: 4px;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  transition: .5s;
  opacity: 0;
}
.modal .content {
  margin-top: 1rem;
}
.modal .content a {
  max- 60%;
  margin: auto;
  display: block;
}

.overlay:target > .modal {
  transform: translateY(30%) scale(0.9);
  transition-timing-function: cubic-bezier(0.8, 0, 0, 1.5);
  opacity: 1;
}

h2 {
  text-align: center;
  margin-top: 2rem;
}

a.close {
  position: absolute;
  top: 15px;
  left: 15px;
   22px;
  height: 22px;
  text-decoration: none;
  text-align: center;
  font-size: 20px;
  line-height: 21px;
  color: lightslategrey;
  background-color: lightgrey;
  border-radius: 50%;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  transition: .25s;
}
a.close:hover {
  background-color: tomato;
  color: white;
}

</style>
</head>
<body>
<div class="wrapper">
  <a class="button" href="#pop">Click!</a>
</div>

<div id="pop" class="overlay">
  <div class="modal">
    <h2>Hey there!</h2>
    <a class="close" href="#">×</a>
    <div class="content">
      So, here we are:<br/>
      I am a pure (S)CSS Modal and work with the <strong>:target</strong> element.<br/><br/>
      You can close me by clicking the x in the upper left corner or the button at the bottom.<br/><br/>
      See you next time:)<br/><br/>
      <a class="button" href="#">Close</a>
    </div>
  </div>
</div>
</body>
</html>