.container {
    display: flex; /* Enables Flexbox */
    width: 100%;
}

.left-column {
    flex: 1; /* Makes this take up 1 part of the available space */
    width: 20%;
    border-radius: 15px 15px 15px 15px; /* Different rounding for each corner */
    /* Add other styling as needed */
}

.right-column {
    flex: 4; /* Makes this take up 4 parts of the available space (1:4 ratio) */
    width: 80%;
    padding: 10px;
    border-radius: 15px 15px 15px 15px; /* Different rounding for each corner */
    /* Add other styling as needed */
}