<!DOCTYPE html>
<html>
<head>
<style>
body {
margin: 0;
}
.group {
display: inline-block;
position: relative;
width: 250px;
height: 500px;
}
.container {
width: 200px;
height: 400px;
outline: 2px solid black;
}
.box {
width: 200px;
height: 200px;
}
.sticky {
background-color: silver;
position: relative;
top: 100px;
}
.indicator {
display: none;
position: absolute;
top: 250px;
left: 50px;
background-color: red;
}
</style>
</head>
<body>
<div class="group" style="top: -100px">
<div class="indicator box"></div>
<div class="container">
<img src="../resources/greenbox.png" class="sticky box" style="top: 200px;">
</div>
</div>
<div class="group" style="top: 0">
<div class="indicator box"></div>
<div class="container">
<img src="../resources/greenbox.png" class="sticky box" style="top: 100px;">
</div>
</div>
</body>
</html>