* {
    box-sizing: border-box;
}

div {
    border: 1px solid black;
    border-radius: 30px 0 0 30px;
    max-width: 1500px;
    max-height: 600px;
    overflow: auto;
}

.block1,
.block2,
.block3,
.block4,
.block5,
.block6,
.block7,
.block8,
.block9,
.block10,
.block11 {
    background: #e09e68fd;
    max-width: 300px;
    min-width: none;
    max-lines: 300px;
    padding: 20px;
    margin: 10px;
    text-align: left;
    border-radius: 30px;
    box-shadow: inset 0px 0px 10px  #454141c0;
    display: inline-block;
    opacity: .9;
}