<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <p>Scroll down this page.</p> <p>When you have scrolled 350px from the top, an image will slide in.</p> <hr> <div class="col-1"> <img id="myImg" src="https://placeimg.com/640/480/nature" width="304" height="228"> </div> <div class="col-2"> Just some text.. </div>

.slideUp { animation-name: slideUp; -webkit-animation-name: slideUp; animation-duration: 1s; -webkit-animation-duration: 1s; visibility: visible; } @keyframes slideUp { 0% { opacity: 0; -webkit-transform: translateY(70%); } 100% { opacity: 1; -webkit-transform: translateY(0%); } } @-webkit-keyframes slideUp { 0% { opacity: 0; -webkit-transform: translateY(70%); } 100% { opacity: 1; -webkit-transform: translateY(0%); } } body {height:1500px;} .col-1 {float:left} .col-2 {float:left;padding-left:25px;} img {width:180px;height:100px;visibility:hidden;} hr {margin-top:400px;}

window.onscroll = function() {myFunction()}; function myFunction() { if (document.body.scrollTop > 350 || document.documentElement.scrollTop > 350) { document.getElementById("myImg").className = "slideUp"; } }