<style>
    /* Estilos */
    header {
      background-color: lightgray;
      padding: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    header div a img {
      width: 150px;
    }

    header nav {
      display: flex;
    }

    header nav ul {
      list-style: none;
      display: flex;
      margin: 0;
      padding: 0;
    }

    header nav ul li {
      margin-right: 20px;
    }

    header nav ul li a {
      text-decoration: none;
      color: black;
    }

    form {
      background-color: lightgray;
      padding: 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    form input[type="text"],
    form input[type="email"],
    form textarea {
      padding: 10px;
      margin-bottom: 20px;
      width: 100%;
    }

    form input[type="submit"] {
      padding: 10px 20px;
      background-color: blue;
      color: white;
      border: none;
      border-radius: 5px;
      cursor: pointer;
    }
</style>
