JSFiddle - React, Tailwind, and code Playground

HTML

<div class="iphone">
    <div class="container">
        <img src="https://dl.dropboxusercontent.com/u/9833562/mtest.png" alt=""/>
    </div>
</div>

CSS

.iphone {
    width:370px;
    height:800px;
    background:url('https://dl.dropboxusercontent.com/u/9833562/iphone.png') no-repeat center;
    background-size:100%;
}
.container {
    position:relative;
    top:152px;
    width:293px;
    margin:auto;
    max-height:496px;
    overflow:auto;
}
.container img {
    width:100%;
}