Front-end mistakes #8

.css

.btn {
  display: inline-block;
  margin-bottom: 0;
  font-weight: 400;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
  padding: 6px 12px;
  font-size: 14px;
}

.btn--newsletter {
  background-color: green;
  border-color: transparent;
}