body {
    background-image: url("../images/stethoscope-1584223_1920-1024x768.jpg");
    background-repeat: no-repeat;
    background-size: cover;
}

.footer{
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: black;
    color: white;
    text-align: center;
}