body {
    font-size: 20px;
}

.parent {
    background: #d3cae9;
    border: 1px solid #000;
    overflow: auto;
    border-radius: 20px 0 0 20px;
    height: 850px;
}

.child {
    background: #d0bd8b;
    display: inline-block;
    margin: 20px;
    box-sizing: border-box;
    max-width: 300px;
    min-width: 205px;
    padding: 20px 25px;
    border-radius: 15px;
    box-shadow: inset 0px 0px 8px 3px #333;
}