* { 
  font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
}

body {
  margin: 14px;
}

#content {
  background-color: rgba(235,244,251, 0.95); 
  border: 1px solid #a6ceed; 
  border-radius: 14px; 
  opacity: 0.87; 
  padding: 0px 8px 4px 8px; 
  margin-bottom: 5px;
}

#startBtn {
  border-radius: 10px;
  border: none;
  cursor: pointer;
  padding: 10px;
  border: 1px solid #c0c0c0; 
  background-color: #f5f5f5;
}

#startBtn:hover {
  border: 1px solid black;
}