滚动时如何使div消失

Question

Could someone help me make a div disappear when as it scrolls? 有人可以帮我让div滚动时消失吗？

For example, if I have a simple header and a bunch of paragraphs below and I scroll, I want the header to stay fixed at the top and the paragraphs below it to scroll past and disappear beneath the header. 例如，如果我有一个简单的标题和下面的一堆段落并进行滚动，则希望标题保持固定在顶部，而下面的段落则滚动过去并消失在标题下方。 So far I have tried the following: 到目前为止，我已经尝试了以下方法：

https://jsfiddle.net/5k8u9w9t/2/ https://jsfiddle.net/5k8u9w9t/2/

basically, I set the header's styling to position: fixed , but the paragraphs are not disappearing below it. 基本上，我将标题的样式设置为position: fixed ，但是段落并没有在其下方消失。 Can someone help? 有人可以帮忙吗？

Thanks in advance! 提前致谢！

Answer 1

This will tidy it up... 这会整理一下...

.container1 {
  position: fixed;
  top: 0;
  width: 100vw;
  background-color: #FFFFFF;
  z-index: 1;
}

.container2 {
  position: relative;
  margin-top: 80px;
}

Answer 2

I don't know exactly what you are trying to do, but maybe this answers your question: 我不知道您到底想做什么，但这也许可以回答您的问题：

.container1 {
  position: fixed;
  z-index: 1;
  background: #fff;

} }

Answer 3

Is this what you are looking for? 这是你想要的？

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {margin:0;}

.navbar {
  overflow: hidden;
  background-color: #333;
  position: fixed;
  top: 0;
  width: 100%;
}

.navbar a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.navbar a:hover {
  background: #ddd;
  color: black;
}

.main {
  padding: 16px;
  margin-top: 30px;
  height: 1500px; /* Used in this example to enable scrolling */
}
</style>
</head>
<body>

<div class="navbar">
  <a href="#home">Home</a>
  <a href="#news">News</a>
  <a href="#contact">Contact</a>
</div>

<div class="main">
  <h1>Fixed Top Menu</h1>
  <h2>Scroll this page to see the effect</h2>
  <h2>The navigation bar will stay at the top of the page while scrolling</h2>

  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
  <p>Some text some text some text some text..</p>
</div>

</body>
</html>

滚动时如何使div消失

问题描述

3 个解决方案

解决方案1
2 已采纳 2018-01-16 21:44:13

解决方案2
0 2018-01-16 21:41:22

解决方案3
0 2018-01-16 21:47:09

滚动时如何使div消失

问题描述

3 个解决方案

解决方案1 2 已采纳 2018-01-16 21:44:13

解决方案2 0 2018-01-16 21:41:22

解决方案3 0 2018-01-16 21:47:09

解决方案1
2 已采纳 2018-01-16 21:44:13

解决方案2
0 2018-01-16 21:41:22

解决方案3
0 2018-01-16 21:47:09