Scroll Triggered

by Venkatesh Dematti

HTML

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
    body {
    font-family: 'Helvetica', sans;
  }
  div.wrapper,div.wrapper2 {
  	margin: 260px auto;
  	width:600px;
  	background:#efe;
    height: 1500px;
  }
  div.sticker,div.sticker2 {
  	padding: 20px;
  	margin: 20px 0;
  	background: #ece;
  	width: 190px;
    transition: all 2s;
  }
  .stick,stick2 {
  	position:fixed;
  	top:100px;
    background:red !important;
    transition: all 2s;
  }
  .marker {
    position: absolute;
    top: 1000px;
    right: 100px;
    font-size: 2em;
  }</style>
</head>
<body>
  <div class="wrapper">
    <div class="sticker">fixed pos until 1000</div>
  </div>

  <div class="wrapper2">
    <div class="sticker2">
      Some Text
    </div>
  </div>
<div class="marker">&lt; 1000</div>

<!-- Updated -->
<!-- Updated -->
<script
  src="https://code.jquery.com/jquery-3.4.1.js"
  integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU="
  crossorigin="anonymous"></script>
<script>


$(document).ready(function() {
  <!-- Upated -->
  var offsets = $('.sticker').offset();
  var topPos = offsets.top;
  alert(topPos);

  var offsets2 = $('.sticker2').offset();
  var topPos2 = offsets2.top;
  alert(topPos2);
  <!-- Upated -->


  $(window).scroll(function(){
    var windowPosition = $(window).scrollTop();
    if(windowPosition > topPos & windowPosition <=topPos +500){
      $('.sticker').addClass('stick');
    }else{
      $('.sticker').removeClass('stick');
    }

    if(windowPosition >= topPos2 & windowPosition <=topPos2 +500){
      $('.sticker2').addClass('stick');
    }else{
      $('.sticker2').removeClass('stick');
    }
  });


});



</script>
</body>
</html>