JS 免费按钮与 "popup"/overlay 链接

Question

我尝试用 javascript button 打开 'popup'/叠加层。不幸的是我的按钮没有打开它。

我哪里出错了？有更好的方法吗？

它应该是 javascript 免费的。

……………………………………………………………………………………………………

/* popup */


.overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity 500ms;
  visibility: hidden;
  opacity: 0;
}
.overlay:target {
  visibility: visible;
  opacity: 1;
}

.popup {
  margin: 70px auto;
  padding: 20px;
  background: #fff;
  border-radius: 5px;
  width: 80%;
  height: 80%;
  position: relative;
  transition: all 5s ease-in-out;
}

.popup h2 {
  margin-top: 0;
  color: #333;
  font-family: Tahoma, Arial, sans-serif;
}
.popup .close {
  position: absolute;
  top: 2%;
  right: 4%;
  transition: all 200ms;
  font-size: 30px;
  font-weight: bold;
  text-decoration: none;
  color: #333;
}
.popup .close:hover {
  color: orange;
}
.popup .content {
  max-height: 30%;
  overflow: auto;
}

<button href="#popup4">btn1</button> 
<div id="popup4" class="overlay">
    <div class="popup"><h2>Here i am</h2>
     <a class="close" href="#">×</a>
    <div class="content">
     Thank to pop me out of that button, but now i'm done so you can close this window.
    </div>
   </div>
  </div>

Answer 1

您的按钮本身没有任何作用，它必须通过表单提交。

<form method="get" action="#popup4">
    <button>btn1</button>
</form>

JS 免费按钮与 "popup"/overlay 链接

JS free Button linked with a "popup"/overlay

overlay

popup

button

hyperlink