body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: #f3f3f3;
}

#container {
    display: flex;
    width: 1200px;
    height: 500px;
    border: 1px solid #ddd;
}

#left {
    width: 50%;
    overflow: hidden;
}

#left img {
    height: 100%;
    object-fit: cover;
    width: 100%;
}

#right {
    flex-grow: 1;
    background-color: blue;
    overflow: auto;
}