SOURCE

<div class="box">123</div>

body {
    background-color: white;
}
.box {
    box-sizing: border-box;
    position: relative;
    top: 100px;
    left: 100px;
    background: #ffffff;
    box-shadow: 0 3px 12px 0 rgb(0 0 0 / 20%);
    border-radius: 10px;
    width: 360px;
    height: 200px;
    padding: 18px;
    font-size: 16px;
}