<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>gg</title>
</head>
<body onload="OnLoad()">
<video src="" controls></video>
<video src="" controls></video>
<video src="" controls></video>
<video src="" controls></video>
<video src="" controls></video>
<video src="" controls></video>
<video src="" controls></video>
<video src="" controls></video>
<video src="" controls></video>
<style>
body{
display: grid;
}
</style>
<script>
function OnLoad(){
window.addEventListener("scroll", function(){
alert("!"); //Здесь получить
});
}
</script>
</body>
</html>