body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}

nav {
  background-color: #000;
  color: #fff;
  padding: 10px;
}

.navbar-brand {
  font-size: 2em;
}

.navbar-nav {
  margin-bottom: 0;
}

.nav-link {
  color: #fff;
}

.nav-link:hover {
  color: #fff;
  background-color: #000;
}

header {
  background-color: #000;
  color: #fff;
  padding: 10px;
}

h1 {
  font-size: 2em;
}

p {
  font-size: 1em;
}

main {
  margin-top: 30px;
}

.hizmetler, .urunler, .hakkimizda {
  background-color: #fff;
  padding: 10px;
}

.hizmetler h2, .urunler h2, .hakkimizda h2 {
  margin-bottom: 10px;
}

.hizmetler ul, .urunler ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.hizmetler ul li, .urunler ul li {
  margin-bottom: 5px;
}

.footer {
  background-color: #000;
  color: #fff;
  padding: 10px;
  text-align: center;
}