@media (max-width: 1000px) {
  html {
    font-size: 90%;
  }

  .right div {
    flex-direction: column;
    width: 100%;
  }

  .right input {
    width: 80%;
    margin: 0 auto 10px auto;
  }

  .line {
    top: 63%;
  }

  button {
    margin: 1rem auto 2.2rem auto;
    width: 80%;
  }

  .right .result {
    width: 80%;
    height: 100px;
  }
}

@media (max-width: 905px) {
  .content {
    flex-direction: column-reverse;
  }

  .left,
  .right {
    width: 80%;
  }

  .right {
    margin-bottom: 2.2rem;
  }

  .right div {
    flex-direction: row;
  }

  .right input {
    width: 40%;
  }
  .right input:nth-child(1) {
    margin-right: 3px;
  }
  .right input:nth-child(2) {
    margin-left: 3px;
  }

  .line {
    top: 59%;
  }

  button {
    width: 70%;
  }
}

@media (max-width: 550px) {
  
  .right div {
    flex-direction: column;
  }

  .right input {
    width: 70%;
  }

  .right input:nth-child(1) {
    margin-right: auto;
  }
  .right input:nth-child(2) {
    margin-left: auto;
  }

  .line {
    top: 65%;
  }
}