.cards-container {
  display: flex;
  .input-stream {
    margin-right: 10px;
  }
  .output-stream {
    margin-left: 10px;
  }
  .input-stream,
  .output-stream {
    flex: 1;
    padding: 1.8rem;
    background-color: #333;
    min-height: 200px;
    min-width: 200px;
    border-radius: 14px;
    &__item {
      color: lightgreen;
    }
  }

}

.buttons-container {
  margin-bottom: 30px;
  display: flex;
  button {
    &:nth-child(1) {
      margin-right: 16px;
    }
  }
}
