body {
    position: relative;
}

.form-container {
    width: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    right: auto;
    transform: translate(-50%, -50%);
}

input[type=text], textarea {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
  }

  #send {
    width: 100%;
    background-color: #4CAF50;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }
  
  #send:hover {
    background-color: #45a049;
  }
  
  div {
    border-radius: 5px;
    background-color: #f2f2f2;
    padding: 20px;
  }