*{
    margin: 0;
    padding: 0;
    font-family: cursive;  
}
.container .jumbotron{
    background-image: url("img.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    color: white;
}
#result{
    font-size: 2.5rem;
    text-align: center;
}