/* Reset default browser styles */
body, h1, h2, h3, h4, h5, h6, p, ul, li {
  margin: 0;
  padding: 0;
}

/* Global styles */
body {
  font-family: "Open Sans", Arial, sans-serif;
  line-height: 1.6;
  background-color: #f5f5f5;
}

header {
  background-color: #111111;
  color: #66F;
  padding: 10px;
  text-align: left;
}

h1 {
  font-size: 20px;
}

nav {
  background-color: #CCC;
  color: #333;
  padding: 5px;
}

nav ul {
  list-style-type: none;
  display: flex;
  justify-content: center;
}

nav ul li {
  margin-right: 10px;
}

nav ul li a {
  color: #333;
  text-decoration: none;
}

main {
  padding: 20px;
}

section {
  margin-bottom: 20px;
}

dt {
    text-transform: uppercase;
}

footer {
  background-color: #333;
  color: #fff;
  padding: 10px;
  text-align: center;
}

/* Media query for mobile devices */
@media (max-width: 767px) {
  .container {
    padding: 10px;
  }

  header {
    padding: 10px;
  }

  nav {
    padding: 5px;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: space-around;
  }

  nav ul li {
    margin-right: 0;
    margin-bottom: 5px;
  }

  main {
    padding: 10px;
  }

  section {
    margin-bottom: 10px;
  }

  footer {
    padding: 5px;
  }
}