body {
    background-repeat: no-repeat;
    background-size: cover;
  }
  
  #container {
    margin: 20px;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-shadow: 0 0 5px #ccc;
    
    transition: background-image 0.5s ease-in-out;
  }
  
  h1 {
    font-size: 24px;
    text-align: center;
  }
  
  textarea {
    width: 100%;
    height: 100px;
    margin: 10px 0;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    resize: none;
    background-color: transparent;
  }
  
  button {
    display: block;
    margin: 10px auto;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background-color: #4CAF50;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #3e8e41;
  }
  
  result {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
  }
  
  body.positive {
    color:#4B0082;
    background-image: url('/images/positive.jpeg');
  }
  
  body.very-positive {
    color: #4B0082;
    background-image: url('/images/very\ positive.jpeg');
  }
  
  body.extremely-positive {
    color: #FFF;
    background-image: url('/images/extremely\ positive.jpeg');
  }
  
  body.negative {
    color: #FFF;
    background-image: url('/images/negative.jpeg');
  }
  
  body.very-negative {
    color: #FF8C00;
    background-image: url('/images/very\ negative.jpeg');
  }
  
  body.extremely-negative {
    color: #F7DC6F;
    background-image: url('/images/extremely\ negative.jpeg');
  }
  body.neutral {
    color: #333833;
    background-image: url('/images/neutral.jpeg');
  }