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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Insecure Resource

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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Using packages here is powered by Skypack, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ES6 import usage.

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HTML 

              
                <!-- videojs must be included first -->
<link href="//vjs.zencdn.net/5.6.0/video-js.css" rel="stylesheet">
<script src="//vjs.zencdn.net/5.6.0/video.js"></script>

<script src="https://cdn.viblast.com/vb/stable/viblast.js"></script>

<!-- body -->
<!-- body -->
<!-- techs will be included automatically. By default the order is: "viblast,viblastflash, html5" -->
<video id="example_video_1" class="video-js vjs-big-play-centered"
       controls preload="auto" width="640" height="264" autoplay
       data-viblast-key="N8FjNTQ3NDdhZqZhNGI5NWU5ZTI=">
  <!-- this is an important to specify the type of the video. Use 'application/x-mpegURL' for HLS streams or 'application/dash+xml' for DASH streams -->
  <source src="//cdn3.viblast.com/streams/hls/airshow/playlist.m3u8" type='application/x-mpegURL' />
  <p class="vjs-no-js">To view this video please enable JavaScript, and consider upgrading to a web browser that <a href="http://videojs.com/html5-video-support/" target="_blank">supports HTML5 video</a></p>
</video>
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CSS
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JS 

              
                // initialize videojs
videojs('#example_video_1', {
  viblast: {
    xhrBeforeSend: function(ev) {
      // This callback will be called for all requests.
      // ev.xhr can be manipulated in any way neccessary.
      // In this example we just log a message on the console
      console.log('Viblast is making a', ev.method, 'request to ', ev.url);
      // but we could also do something like
      // ev.xhr.setRequestHeader('MY-HEADER', 'VALUE');
    }
  }
});
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999px

Console