JSFiddle - React, Tailwind, and code Playground

HTML

<div><img src="https://rastenievod.com/wp-content/uploads/2017/04/1-18-700x525.jpg"></div>

CSS

body{
background:#222;
padding:50px;    
}

div{
display:inline-block;    
position:relative;    
}

img{
display:block;    
width:300px;
border-radius:15px;    
}

div:before{
content:'';
position:absolute;
top:-1px;
bottom:-1px;
left:-1px;
right:-1px;    
box-shadow:inset 0px 0px 15px 10px #222;
border-radius:15px;    
}