* {
    box-sizing: border-box;
}

main {
    background-color: bisque;
    overflow: overlay;
    height: 550px;
    border-radius: 30px 0 0 30px;
    padding: 15px 0;
}


.block {
    display: inline-block;
    background-color: burlywood;
    width: 350px;
    margin: 10px;
    border-radius: 25px;
    border: 1px solid #000000;
    box-shadow: inset 0 0 15px #000000;
}

.block-1 {
    padding: 20px;
}