body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    transition: background-color 1s ease; /* Smooth transition for color change */
}

#colorButton {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}
#left-content {
    display: flex;
    justify-content: stretch;
    align-items: stretch;
}