tr.total {
  font-weight: bold;
}
.btn-primary {
  margin: 5px;
}
*[hidden] {
  display: none;
}
body {
  color: #222;
}
h2 {
  text-align: center;
  font-size: 22px;
}
p {
  text-align: center;
  font-size: 16px;
}

/* Vertical Background Gradient */
/* Horizontal Background Gradient */

.btn-primary {
  margin: 5px;
}

tr.total {
  font-weight: bold;
}