footer {
    background-color: black;
    color: aliceblue;
    display: flex;
    position: fixed;
    bottom: 0px;
    width: 100%;
    height: 60px;
    transition-duration: 4s;


}

footer:hover {
    height: 120px;
    transition: 1.5s;
    background-color: rgb(101, 64, 50);
    border-radius: 30px;
    bottom: 20px;
    box-sizing: border-box;
    margin-left: 10%;
    margin-right: 10%;
}