* {
    box-sizing: border-box;
}

.conteiner {
    border-top-left-radius: 30px;
    border-bottom-left-radius: 30px;
    overflow: auto;
    height: 600px;
    border: 1px solid #000000;
    background: #b88ab82e;
    max-width: 1200px;
}

.block {
    display: inline-block;
    width: 300px;
    border-radius: 30px;
    background: #a38e5995;
    padding: 30px 20px;
    margin: 5px;
    font-size: 20px;
    box-shadow: inset 0 0 20px #00000092;
}