.footer {
    background-color: rgb(50, 50, 50);
    text-align: center;
    position: relative;
    box-shadow: 0 0 10px 0px #333;
    z-index: 99;
    transition: .3s;
    width: 100%;
}

.footer span {
    display: inline-block;
    color: white;
    padding: 14px;
    font-size: 15px;
    transition: .3s;
}

.footer.about {
    position: absolute;
    bottom: 0;
}