form {
      display: flex;
      flex-wrap: wrap;
      grid-gap: 20px;
  }

  form .input1 {
      padding-left: 15px;
      width: 100%;
      height: 45px;
      border: 1px solid #ced4da;
      outline: none;
  }

  form .input2 {
      width: 100%;
      padding-top: 15px;
      padding-left: 25px;
      height: 90px;
      border: 1px solid #ced4da;
      outline: none;
  }

  form .captcha {
      width: 100%;
      display: flex;
  }

  form .captcha input {
      padding-left: 25px;
      width: calc(100% - 100px);
      height: 44px;
      border: 1px solid #ced4da;
      outline: none;
  }

  form .captcha img {
      width: 100px;
      height: 44px;
      border: 1px solid #ced4da;
      background: #fff;
  }

  form .input4 {
      padding: 15px 45px;
      border: 1px solid #ced4da;
      color: #fff;
      font-weight: bold;
      text-align: center;
      font-size: 16px;
      background: #e60012;
  }


  @media (max-width: 1200px) {

      form .captcha input {
          width: calc(100% - 210px);
      }
  }


  @media (max-width: 600px) {
      form {
          grid-gap: 15px;
      }
  }