body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
}

header {
  background-color: #2b4a63;
  color: white;
  text-align: center;
  padding: 20px;
}

header h1 {
  margin: 0;
}

#btnRefrescar {
  margin-top: 10px;
  padding: 8px 16px;
  font-size: 16px;
  background-color: #f7b733;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

main {
  width: 80%;
  margin: 20px auto;
}

#mensaje {
  text-align: center;
  color: #e74c3c;
  font-weight: bold;
}

.noticia {
  background-color: white;
  border: 1px solid #cccccc;
  border-radius: 5px;
  padding: 15px;
  margin-bottom: 15px;
}

.noticia h2 {
  margin-top: 0;
  color: #2b4a63;
  cursor: pointer;
}

.noticia h2:hover {
  text-decoration: underline;
}

.noticia p {
  color: #333333;
}

.noticia .fuente {
  font-size: 13px;
  color: #777777;
}