Nuclear Planning Manual


    0.2.0 • Public • Published

    Lite YouTube Embed NPM lite-youtube-embed package

    Renders faster than a sneeze.

    Provide videos with a supercharged focus on visual performance. This custom element renders just like the real thing but approximately 224× faster.



    Normal <iframe> YouTube embed lite-youtube
    Screen Shot 2019-11-03 at 5 23 50 PM Screen Shot 2019-11-03 at 5 21 05 PM Screen Shot 2019-11-03 at 5 19 35 PM Screen Shot 2019-11-03 at 5 23 27 PM Screen Shot 2019-11-03 at 5 20 55 PM Screen Shot 2019-11-03 at 5 20 16 PM

    Basic usage

    Use the lite-youtube-embed npm package or download from this repo and use src/.

    To use the custom element you will need to:

    1. Include the stylesheet within your application
    2. Include the script as well
    3. Use the lite-youtube tag via HTML or JS.
    4. Be happy that you're providing a better user experience to your visitors
    <!-- Include the CSS & JS.. (This could be direct from the package or bundled) -->
    <link rel="stylesheet" href="node_modules/lite-youtube-embed/src/lite-yt-embed.css" />
    <script src="node_modules/lite-youtube-embed/src/lite-yt-embed.js"></script>
    <!-- Use the element. You may use it before the lite-yt-embed JS is executed. -->
    <lite-youtube videoid="ogfYd705cRs" playlabel="Play: Keynote (Google I/O '18)"></lite-youtube>

    Privacy note: lite-youtube uses instead of in order to be more privacy friendly for end users.

    Custom Player Parameters

    YouTube supports a variety of player parameters to control the iframe's behavior and appearance. These may be applied by using the params attribute.

    <!-- Example to show a video player without controls, starting at 10s in, ending at 20s,
         with modest branding *and* enabling the JS API -->
    <lite-youtube videoid="ogfYd705cRs" params="controls=0&start=10&end=30&modestbranding=2&rel=0&enablejsapi=1"></lite-youtube>

    Note that lite-youtube uses autoplay=1 by default.


    Pro-usage: load w/ JS deferred (aka progressive enhancement)

    Use this as your HTML, load the script asynchronously, and let the JS progressively enhance it.

    <lite-youtube videoid="ogfYd705cRs" style="background-image: url('');">
      <button type="button" class="lty-playbtn">
        <span class="lyt-visually-hidden">Play Video: Keynote (Google I/O '18)</span>


    Custom poster image

    If you want to provide a custom poster image, just set it as the background-image, and lite-yt will not overwrite it:

    <lite-youtube videoid="ogfYd705cRs" style="background-image: url('');"></lite-youtube>


    Other lite embeds


    npm i lite-youtube-embed

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    • paulirish
    • manzur