html {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
  }
  body {
    background-color: #e76f51;
    color: white;
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  h1 {
    margin-top: 100px;
    text-align: center;
    font-size: 42px;
    text-shadow: 1px 1px 1px #023047;
  }
  #container {
    background-color: #023047;
    width: 500px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 10px 10px 20px 10px;
    border-radius: 14px;
  }
  input, button {
    margin-bottom: 20px;
    width: 300px;
    height: 50px;
    border-radius: 14px;
  }
  input {
    font-size: 32px;
    border: none;    
    text-align: center;
    padding: 0;
  }
  button {
    background-color: #ffb703;
    border: none;
    color: #023047;
    font-weight: bold;
    font-size: 24px;
  }
  button:hover {
    cursor: pointer;
    color: white;
    text-shadow: 1px 1px 1px #023047;
  }
  #output-container {
    margin-top: 25px;
    background-color: #023047;
    width: 500px;
    min-height: 70px;
    color: white;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    border-radius: 14px;
    padding: 0 10px;
  }
  .msg {
    font-size: 25px;
    padding: 15px;
  }
  
  @media only screen and (max-width: 600px) {
    #container, #output-container {
      width: 80vw;
      text-align: center;
    }
    h1 {
      margin-top: 20px;
    }
    input, button {
      width: 250px;
    }
  }
  
  @media only screen and (max-height: 600px) {
    #container, #output-container {
      width: 80vw;
      text-align: center;
    }
    #container {
      padding-top: 0;
      padding-bottom: 2px;
      margin-top: -17px;
    }
    h1 {
      margin-top: 10px;
    }
    input, button {      
      width: 250px;
      height: 45px;
    }
    #output-container {
      margin-top: 15px;
      min-height: 50px;
    }
  }