h5 {
    padding: 20px;
    margin: auto;
    text-align: center;
    color: #fff;
}
.panel-heading {
    background: lightgray;
    text-align: center;
    padding: 8px;
}
.jumbotron{
    background-image: url("../images/train.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 50%;
}