.jumbotron {
    padding: 4em 2em;
    margin: 2em;
}

img {
    max-width: 100%;
}

.btn{
    white-space:normal !important;
    word-wrap: break-word; 
    max-width: 100%;
}

#d20Icon {
    animation: mymove 2s 1;
}
@keyframes mymove {
    from {transform: rotate(180deg);}
   to {transform: rotate(360deg);}
  }