<nav>
  <a href="#">Anasayfa</a>
  <a href="#">Hakkımda</a>
  <a href="#">İletişim</a>
</nav>

body {
  padding: 0;
  margin: 0;
  border: 0;
  font: 1em sans-serif;
}

nav {
  background: #eee;
  padding: 10px 20px;
  border: 1px solid #ccc;
  width: 25%;
  text-align: center;
  margin: 40px auto;
  a {
    color: #333;
    text-decoration: none;
    &:after {
      content: " |";
    }
    &:last-child:after {
      content: "";
    }
    &:hover:after {
      color: #333;
    }
    &:hover {
      color: #357dfb;
    }
  }
}