.btn-common{
  color: #fff;
  border-radius: 3px;
  border: 1px solid;
}
.btn-small {
  height: 20px;
  padding: 0 8px;
  font-size: 12px;
}
.btn-medium {
  height: 28px;
  padding: 0 12px;
  font-size: 12px;
}
.btn-large {
  height: 40px;
  padding: 0 16px;
  font-size: 16px;
}
.btn-success{
  background-color: #218838;
  border-color: #218838;
}
.btn-danger{
  background-color: #dc3545;
  border-color: #dc3545;
}
.btn-warning{
  background-color: #ffc107;
  border-color: #ffc107;
}
.btn-dark{
  background-color: #343a40;
  border-color: #343a40;
}