"

From 2014.igem.org

.jumbotron{

 height: 300px;
 background: #FF4D4D; 
 color: white;

}

1. btnRow{

   padding-top: 30px; 
   padding-bottom: 30px;

}

.toLesson{

   background: #FF4D4D; ;
   color: white;

}

.btn-group > a{ color: #ffffff; } .toClass{

    background: #97c3c3;

}

h1, h2, h3, h4, h5, h6 { border-bottom: none; }

.thumbnail{

       width: 140px;
   }