index.scss

.input-with-country-codes {
  display: flex;
  border: 1px solid #ccc;
  border-radius: 3px;
  margin-bottom: 24px;

  .tel-input {
    margin-bottom: 0;
    .input {
      padding-left: 10px;
      border: none;
    }
  }

  .country-codes {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 15px;
    color: #333;
    width: 63px;
    text-align: center;
    border-right: 1px solid #ccc;
  }
}