.row {
  margin-top: 8em;
  margin-bottom: 8em;
  border-radius: 6px;
}

.col-sm-4 .well,
.col-sm-6 .well {
  height: 12em;
}

.well .btn-success {
  position: absolute;
  bottom: 1.5em;
}

.active {
  background-color: #dff0d8;
  -webkit-transition: background 0.5s linear;
  -moz-transition: background 0.5s linear;
  -ms-transition: background 0.5s linear;
  -o-transition: background 0.5s linear;
  transition: background 0.5s linear;
}

h3 {
  margin-top: 0;
}

footer {
  position: fixed;
  padding-top: 15px;
  left: 0;
  right: 0;
  bottom: 0;
  height: 60px;
  background-color: #f5f5f5;
}

#copyright {
  margin-top: 0.2em;
}

@media screen and (min-width: 600px) {
  .well .btn-success {
    position: absolute;
    bottom: 3em;
  }

  .col-sm-4 .well {
    height: 16em;
  }

  .col-sm-6 .well {
    height: 14em;
  }
}