body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  margin: 0;
  padding: 0;
  color: #333;
}

header {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 20px;
}

.container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  max-width: 1200px;
  margin: auto;
  padding: 20px;
  box-sizing: border-box;
}

.conteudo {
  flex: 3;
  min-width: 300px;
}

.sidebar {
  flex: 1;
  min-width: 250px;
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-sizing: border-box;
}

.post {
  background: #fff;
  padding: 15px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

.post h2 {
  margin-top: 0;
}

.post .data {
  font-size: 0.9em;
  color: #777;
}

.leia-mais {
  display: inline-block;
  margin-top: 10px;
  color: #007BFF;
  text-decoration: none;
}

footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 10px;
  margin-top: 40px;
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .conteudo,
  .sidebar {
    width: 100%;
  }
  .noticias-rolando {
  overflow: hidden;
  background: #fff8dc;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
  padding: 10px 0;
  font-size: 0.95em;
  color: #444;
  white-space: nowrap;
}

.noticias-marquee {
  display: inline-block;
  padding-left: 100%;
  animation: rolando 25s linear infinite;
}
}
@keyframes rolando {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}