body {
    box-sizing: border-box;
    font-size: 23px;
}

.main {
    background: #e2e2e2;
    border: 1px solid #000;
    border-radius: 30px 0 0 30px;
    overflow: auto;
    padding: 10px 5px;
    height: 650px;
}

.block {
    background: #b79b73;
    width: 280px;
    height: 225px;
    padding: 20px 30px 20px 30px;
    border-radius: 30px;
    box-shadow: inset 0px 0px 10px #000;
    margin: 0 15px 20px 0;
    display: inline-block;
}