<div class="container"></div>
body {
background: url(https://images.unsplash.com/photo-1544306094-e2dcf9479da3) no-repeat;
background-size: cover;
display: grid;
align-items: center;
justify-content: center;
height: 100vh;
}
.container {
width: 30rem;
height: 20rem;
box-shadow: 0 0 1rem 0 rgba(0, 0, 0, .2);
border-radius: 5px;
background-color: rgba(255, 255, 255, .15);
backdrop-filter: blur(5px);
}
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