Move youtube if the screen scroll is detected

Move youtube if the screen scroll is detected

by Adi Jaya

HTML

<div class="main">
  
  
    <div class="content">Scroll this page</div>
    <div class="content">Scroll this page</div>
    
    
    
    <div class="youtube-container" id="demo">
      <button class="close" onclick="alert('alert demo')">&times;</button>
      <iframe 
        src="https://www.youtube.com/embed/6VnPYD0TKHQ"
        frameborder="0"
        allowfullscreen>
       </iframe>
    </div>
    
    
    
    <div class="content">Scroll this page</div>
    <div class="content">Scroll this page</div>
    <div class="content">Scroll this page</div>
    <div class="content">Scroll this page</div>
    <div class="content">Scroll this page</div>
  
  
</div>

CSS

.content {
  height: 300px;
  border: 1px solid silver;
  margin: 1em;
  padding: 15px;
  background: beige;
}

.youtube-container {
    border: 1px solid #949494;
    padding: 15px;
    margin: 1em;
    position: relative;
    overflow: auto;
    height: 350px;
    background: #636161;
    box-sizing: border-box;
}

.youtube-container iframe {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    left: 0;
    right: 0;
    bottom: 0;
}

.youtube-container.active {
    position: fixed;
    bottom: 15px;
    right: 15px;
    height: 230px;
    width: 300px;
    margin: 0;
}

.close {
    position: absolute;
    z-index: 1000;
    top: 0;
    right: 0;
    font-size: 1.5em;
    background: #2196F3;
    border: 1px solid #0074a9;
    border-radius: 5px;
    display: none;
    zoom: 1;
    line-height: 1;
    cursor: pointer;
    color: #fff;
}

.youtube-container.active .close {
  display: inline-block;
}

JavaScript

var $demo = document.getElementById("demo");
var $target = $demo.innerHeight || $demo.clientHeight ;

var $height = [ $target * 3 ];
function tes123() {
	if ( window.pageYOffset >= $height ) {
		$demo.className = "youtube-container active";
	} else {
		$demo.className = "youtube-container";
	}
}

window.onscroll = function(){
	tes123();
}