<div class="project">
    <ul class="menu">
      <li class="menu__item"><a href="#">главная</a></li>
      <li class="menu__item"><a href="#">о&nbsp;компании</a></li>
      <li class="menu__item menu__item--info"><a href="#">Информация</a></li>
      <li class="menu__item"><a href="#">О&nbsp;нас</a></li>
    </ul>
  </div>

.project {
}

.menu {
  background: #2696e8;
  width: 600px;
  margin: 10px auto 0;
  height: 80px;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid #0529ad;
  box-sizing: border-box;
  align-items: flex-start;
}

.menu__item {
  list-style-type: none;
  border: 2px solid #0529ad;
  box-sizing: border-box;
}

.menu__item--info {
  align-self: stretch;
}

.menu__item a {
  color: #fff;
  text-decoration: none;
  text-transform: capitalize;
  display: inline-block;
  padding: 0 10px;
}