body {
    padding-top: 70px;
    padding-bottom: 30px;
}

.footer {
    padding-top: 19px;
    color: #777;
    border-top: 1px solid #e5e5e5;
}

.jumbotron {
    text-align: center;
    background-color: transparent;
}
.jumbotron .btn {
    padding: 14px 24px;
    font-size: 21px;
}

#app {
    position: relative;
    border: 1px solid #ccc;
    height: 480px;
    z-index: 1000;
}