body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f4f4f4;
  }
  
  header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem;
    /*position: sticky;
    top: 0;*/
  }
  
  .barra-navegador {
    background-color: #34495e;
    padding: 0.5rem;
    text-align: center;
    font-weight: bold;
  }
  
  .encabezado {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .foto-perfil {
    width: 120px;
    height: 120px;
    border-radius: 50%;
  }
  
  main {
    display: flex;
    padding: 1rem;
  }
  
  aside {
    width: 25%;
    background-color: #ecf0f1;
    padding: 1rem;
  }
  
  section {
    margin-bottom: 1.5rem;
  }
  
  .contenido-principal {
    width: 75%;
    padding: 1rem;
  }
  
  .contenido-principal img {
    width: 100px;
    margin-top: 0.5rem;
  }
  
  footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 1rem;
  }
  
  .redes img {
    width: 30px;
    margin: 0 10px;
  }