JSFiddle - React, Tailwind, and code Playground

HTML

<body>
        <div id="player_prop" style="position:relative;"><iframe id="player" type="text/html" width="640" height="390"
            src="http://www.youtube.com/embed/GRonxog5mbw?enablejsapi=1"
            frameborder="0"></iframe></div>
    </body>

JavaScript

// 2. This code loads the IFrame Player API code asynchronously.
            var tag = document.createElement('script');
            
            tag.src = "https://www.youtube.com/iframe_api";
            var firstScriptTag = document.getElementsByTagName('script')[0];
            firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
            
            // 3. This function creates an <iframe> (and YouTube player)
            //    after the API code downloads.
            var player;
            function onYouTubeIframeAPIReady() {
              player = new YT.Player('player', {
                events: {
                  'onReady': onPlayerReady,
                  'onStateChange': onPlayerStateChange
                }
              });
            }
            
            // 4. The API will call this function when the video player is ready.
            function onPlayerReady(event) {
              event.target.playVideo();
            }
            
            // 5. The API calls this function when the player's state changes.
            //    The function indicates that when playing a video (state=1),
            //    the player should play for six seconds and then stop.
            
            
            //Not from google
            
            //from mantish http://stackoverflow.com/questions/3452546/javascript-regex-how-to-get-youtube-video-id-from-url
            function youtube_parser(url){
                var regExp = /^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*/;
                var match = url.match(regExp);
                if (match&&match[2].length==11){
                    return match[2];
                }else{
                    //error
                }
            }
            //end of Lasnvs code
            
            function restart_vid()
            {
                el = document.getElementById("fake_replay_button");
                vid_id =...