.jumbotron {
  background-color: black;
  color: #ccc;
}

.jumbotron h1 {
  background-color: black;
  color: #2d2;
}

.glyphicon.spinning {
    animation: spin 2s infinite linear;
    -webkit-animation: spin2 2s infinite linear;
}

@keyframes spin {
    from { transform: scale(1) rotate(0deg); }
    to { transform: scale(1) rotate(360deg); }
}

@-webkit-keyframes spin2 {
    from { -webkit-transform: rotate(0deg); }
    to { -webkit-transform: rotate(360deg); }
}