.ss {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    width: 100%;
    height: 100%;
    background-color: rgb(255, 255, 255);
 }



.by {width: 100%;
    text-align: center;
    background-color: rgb(255, 255, 255);
    color: #000;
    padding: 10 0;
    }