footer {
    bottom: 0;
    left: 0;
    width: 100%;
    /* Add other styling like background-color, padding, z-index if needed */
}

#ad {
    width: 97%;
    height: 100%;
    padding-right:3%;
}

#left {
    float: left;
    width: 48%; /* Adjust width as needed */
    text-align: left;
    padding-right: 2%;
    max-width: 500px;
}

#right {
    object-position: 50% 50%;
    display: block;
    float: right;
    width: 48%; /* Adjust width as needed */
    padding-right: 2%;
    padding-top: 2%
}
@media screen and (max-width: 900px) {
    #left {
        width: 48%; /* Adjust width as needed */
        min-width: 400px;
        text-align: left;
        margin-left: 3%;
    }

    #right {
        float: left;
        width: 80%;
        display: contents;
    }

    #ad {
        padding-top: 3%;
        width: 90%;
    }
}