JSFiddle - React, Tailwind, and code Playground

HTML

<div id="screen">
    <div id="window">
        <div id="scrollable_zoomable_background">
            <div id="object1"></div>
            <div id="object2"></div>
            <div id="object3"></div>
        </div>
    </div>
</div>

CSS

body {
    background-color: #999;    
}

#screen {
    margin: 50px 0;
    width: 600px;
    height: 600px;
}

#window {
    width: 500px;
    margin: 0 auto;
    height: 500px;
    overflow: scroll;
}

#scrollable_zoomable_background {
    width: 1000px;
    height: 1000px;
    position: relative;
    background-color: #e5e5e5;
}

#object1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 30px;
    background-color: #f00;
}


#object2 {
    position: absolute;
    top: 500px;
    left: 500px;
    width: 30px;
    height: 30px;
    background-color: #0f0;
}


#object3 {
    position: absolute;
    top: 800px;
    left: 800px;
    width: 30px;
    height: 30px;
    background-color: #00f;
}