JSFiddle - React, Tailwind, and code Playground

HTML

<div class="test">
</div>

CSS

.test {
    position: absolute;
    width: 200px;
    height: 400px;
    top: 40px;
    left: 40px;
    background-image: linear-gradient(-135deg, transparent 30px, black 30px), 
    linear-gradient(135deg, transparent 30px, black 30px), 
    linear-gradient(-45deg, transparent 30px, black 30px), 
    linear-gradient(45deg, transparent 30px, black 30px), 
    radial-gradient(200px 5px ellipse at 50% 50%, transparent 70px, 
               black 73px);
    background-size: 50% 20%, 50% 20%, 50% 72%, 50% 72%, 100% 10%;
    background-position: left top, right top, left bottom, right bottom, left 20%;
    background-repeat: no-repeat;
}


body {
    background: linear-gradient(70deg, lightgreen, lavender);
}