JSFiddle - React, Tailwind, and code Playground

HTML

<div id="board">
    Place image here!
</div>

CSS

#board {
    position: absolute;
    left: 50px;
    top: 50px;
    background: #e5e5e5;
    text-align: center;
    width: 100px;
    height: 100px;
}
#board:before {
z-index: -1;
position: absolute;
content: "";
bottom: 0;
left: 5px;
width: 5px;
height: 50%;
background: rgba(0, 0, 0, 0.7);
-webkit-box-shadow: -5px 0 10px rgba(0,0,0, 0.7);
-moz-box-shadow: -5px 0 10px rgba(0, 0, 0, 0.7);
box-shadow: -5px 0 10px rgba(0, 0, 0, 0.7);
-webkit-transform: rotate(6deg);
-moz-transform: rotate(6deg);
-o-transform: rotate(6deg);
-ms-transform: rotate(6deg);
transform: rotate(6deg);
}
#board:after {
    z-index: -1;
position: absolute;
content: "";
bottom: 0;
right: 5px;
width: 5px;
height: 50%;
background: rgba(0, 0, 0, 0.7);
-webkit-box-shadow: 5px 0 10px rgba(0,0,0, 0.7);
-moz-box-shadow: 5px 0 10px rgba(0, 0, 0, 0.7);
box-shadow: 5px 0 10px rgba(0, 0, 0, 0.7);
-webkit-transform: rotate(-6deg);
-moz-transform: rotate(-6deg);
-o-transform: rotate(-6deg);
-ms-transform: rotate(-6deg);
transform: rotate(-6deg);
}