<header class="">
  <nav class="menu container">
    <ul class="navbar">
      <li><a target="_blank" href="#">Главная</a></li>
      <li><a href="#">Наши проекты</a></li>
      <li><a href="#">Услуги</a></li>
      <li><a href="#">Новости</a></li>
      <li><a href="#">Контакты</a></li>

    </ul>

  </nav>
</header>

body {
  background: #8594AB;
}

.container {
  width: 520px;
  //height: 36px;
  //position: absolute;
  //top: 40px;
  //bottom: 0;
  //left: 692px;
  margin: 0 auto;
  outline: 1px dotted gray;
}

.navbar {
  display: flex;
  justify-content: flex-end;
  text-decoration: none;
  //height: 36px;
}

.navbar li {
  list-style: none;
  //display: inline;
  margin-right: 30px;
}

.navbar a {
  display: inline-block;
  padding: 10px 0;
  color: white;
  text-decoration: none;
  font-size: 14px;
  font-family: "Montserrat";
  font-weight: 400;
}