.hidden {
  display: none;
}
.container-fluid {
  height: 80vh;
}
.container-fluid .card-body,
.container-fluid .card {
  height: 100%;
}
.container-fluid .card h1 {
  font-size: 50vh;
  white-space: nowrap;
  overflow: hidden;
  max-height: 90%;
}
.howto li {
  text-align: justify;
  width: 100%;
}
.footer {
  clear: both;
  position: absolute;
  border: 0;
  bottom: 0;
  width: 100%;
  position: relative;
  text-align: center;
}
.footer tt {
  right: 0;
  position: absolute;
}
#manager-form {
  position: absolute;
  bottom: 0;
  width: 100;
}
.btn-group-sm {
  position: fixed;
  bottom: 0;
  right: 0;
}
.error {
  color: red;
  font-weight: bolder;
}