自定义滚动条

Question

在我的应用程序中，无论滚动条出现在哪里，都应该将其更改为自定义滚动条。css 中是否有任何方法可以设置滚动条的样式。如果没有，请向我提供有关自定义滚动条的任何建议。

我已经看到了自定义滚动条的 jquery 插件，但是我需要更改自定义滚动条的每个位置。相反，是否有任何方法可以在一个地方进行更改会影响滚动条将出现在我的应用程序中的所有位置。

Answer 1

我开发了一个名为 SimpleScrollbar的自定义滚动条库。

它不依赖于任何其他库/框架，并且在 gzip 和缩小后小于 1KB。

它使用原生滚动，因此没有任何黑客攻击，而且性能非常棒。

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您只需要在页面中包含该库，并在要使其可滚动的任何 div 中使用ss-container属性。 现场示例：

 <link href="http://buzinas.github.io/simple-scrollbar/simple-scrollbar.css" rel="stylesheet"/> <div style="height: 180px; width: 200px; display: inline-block;" ss-container> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p> </div> <section style="height: 180px; width: 300px; display: inline-block;" ss-container> <p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?</p> <p>But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?</p> </section> <!--[if IE 9]><script src="https://cdn.jsdelivr.net/classlist/2014.01.31/classList.min.js"></script><![endif]--> <script src="http://buzinas.github.io/simple-scrollbar/simple-scrollbar.min.js"></script>

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它适用于所有现代浏览器（Firefox、Chrome、Opera、Safari、Edge）以及 IE10 和 IE11。 您还可以通过包含 classList polyfill 在 IE9 中使用它。

也支持所有 Android、iOS 和 Windows Phone 浏览器。

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如果你想自动找出所有已经有滚动条的元素，你可以这样做：

// After all the content in your page has loaded
document.addEventListener('DOMContentLoaded', function() {
  // Get all elements in your page
  var elements = document.querySelectorAll('*'), el;
  for (var i = 0; i < elements.length, el = elements[i]; i++) {
    // If the scrollheight is higher than the clientheight, it's because it has a scrollbar
    if (el.scrollHeight > el.clientHeight) {
      SimpleScrollbar.initEl(el); // turn the element into a SimpleScrollbar one
    }
  }
});

Answer 2

您可以在WebKit和较旧的 IE 中设置滚动条的样式。

要影响所有滚动条，您应该能够使用选择器，例如body, textarea, .any-other-element-with-overflow-scroll 。

使用自定义滚动条时请考虑可能的可用性问题。

Answer 3

您可以使用webkit所有滚动条的样式

::-webkit-scrollbar {
  width: 20px;
}

/* Track */
::-webkit-scrollbar-track {
  box-shadow: inset 0 0 5px grey; 
  border-radius: 10px;
}

/* Handle */
::-webkit-scrollbar-thumb {
  background: red; 
  border-radius: 10px;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
  background: #b30000; 
}

上面的代码将更改应用程序中的所有滚动条。 你只需要在某处添加它

这是codepen中相同的演示

https://codepen.io/DineshNadimpalli/pen/WNNabZM