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HTML

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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.

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JavaScript

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

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Babel includes JSX processing.

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HTML 

              
                  <!-- IOS Bug dont Use this code-->
<div class="wrapper">
  <!-- begin Video Youtube
  =========================================================================== -->
  <div class="video-youtube video-youtube_overlay">
    <div id="video-youtube__content" class="video-youtube__content video-youtube__content_hide-origin-play-btn"></div>
    <button type="button" class="video-youtube__new-play-btn"></button>
  </div>
  <!-- end Video Youtube
  =========================================================================== -->
</div>
!

CSS 

              
                /* IOS Bug dont Use this code */
.hidden {
  display: none !important;
}
.wrapper {
  max-width: 560px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  margin-top: 100px;
}
/* -------------------------------------------------------------------------
   begin Video Youtube
 * ------------------------------------------------------------------------- */
.video-youtube {
  position: relative;
  padding-bottom: 56.25%;
  padding-top: 25px;
  height: 0;
  &.video-youtube_overlay {
    &:before {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: 0;
      background-color: transparent;
      width: 100%;
      height: 100%;
      display: block;
      z-index: 5;
    }
  }

  .video-youtube__content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    &.video-youtube__content_hide-origin-play-btn {
      width: 10000%;
      height: 10000%;
      transform: scale(.01);
      transform-origin: top left;
      &::selection {
        background-color: transparent;
      }
    }
  }
  .video-youtube__new-play-btn {
    max-width: 153px;
    max-height: 153px;
    width: 100%;
    height: 100%;
    border: none;
    background-color: transparent;
    background-image: url(https://erweb.ru/wp-content/uploads/2017/09/youtube-play.png);
    background-size: contain;
    background-repeat: no-repeat;
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    cursor: pointer;
  }
}
/* -------------------------------------------------------------------------
   end Video Youtube
 * ------------------------------------------------------------------------- */
!

JS 

              
                /* IOS Bug dont Use this code */
'use strict';
/* -------------------------------------------------------------------------
   begin Video Youtube
 * ------------------------------------------------------------------------- */

function onYouTubePlayerAPIReady() {
  var playerYoutube;
  
  playerYoutube = new YT.Player("video-youtube__content", {
    videoId: "cxXUEDbOxgo",
    playerVars: {
      // 'controls': 0,
      // 'showinfo': 0,
      // 'disablekb': 1
    },
    events: {
      onReady: onYouTubePlayerReady
    }
  });
}

function onYouTubePlayerReady(event) {
  // https://developers.google.com/youtube/iframe_api_reference#Events
  var targetYoutubeVideo = event.target;
  var videoDomElem = document.getElementById(
    event.target.getIframe().getAttribute("id")
  );
  var newPlayBtn = videoDomElem.nextElementSibling;

  newPlayBtn.addEventListener("click", function(event) {
    targetYoutubeVideo.playVideo();
    this.classList.add('hidden');
    videoDomElem.classList.remove('video-youtube__content_hide-origin-play-btn');
    videoDomElem.parentNode.classList.remove('video-youtube_overlay');
  });
}

var tag = document.createElement("script");

tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName("script")[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);

/* -------------------------------------------------------------------------
   end Video Youtube
 * ------------------------------------------------------------------------- */
!
999px

Console