Responsive navigation bar with css

<div class="header">
  <h2 class="logo">DarkCode</h2>
  <input type="checkbox" id="chk" />
  <label for="chk" class="show-menu-btn">
    <i class="fas fa-ellipsis-h"></i>
  </label>

  <ul class="menu">
    <a href="#">Home</a>
    <a href="#">About</a>
    <a href="#">Services</a>
    <a href="#">Works</a>
    <a href="#">Contact</a>
    <label for="chk" class="hide-menu-btn">
      <i class="fas fa-times"></i>
    </label>
  </ul>
</div>

<div class="content">
  <center>
    <img
      src="https://res.cloudinary.com/drcrre4xg/image/upload/v1572143490/img_znoaoj.jpg"
      alt=""
    />
  </center>

  <p>
    The standard Lorem Ipsum passage, used since the 1500s "Lorem ipsum dolor
    sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut
    labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud
    exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis
    aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
    fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt
    in culpa qui officia deserunt mollit anim id est laborum." Section 1.10.32
    of "de Finibus Bonorum et Malorum", written by Cicero in 45 BC "Sed ut
    perspiciatis unde omnis iste natus error sit voluptatem accusantium
    doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore
    veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim
    ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia
    consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque
    porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur,
    adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et
    dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis
    nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid
    ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea
    voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem
    eum fugiat quo voluptas nulla pariatur?" 1914 translation by H. Rackham "But
    I must explain to you how all this mistaken idea of denouncing pleasure and
    praising pain was born and I will give you a complete account of the system,
    and expound the actual teachings of the great explorer of the truth, the
    master-builder of human happiness. No one rejects, dislikes, or avoids
    pleasure itself, because it is pleasure, but because those who do not know
    how to pursue pleasure rationally encounter consequences that are extremely
    painful. Nor again is there anyone who loves or pursues or desires to obtain
    pain of itself, because it is pain, but because occasionally circumstances
    occur in which toil and pain can procure him some great pleasure. To take a
    trivial example, which of us ever undertakes laborious physical exercise,
    except to obtain some advantage from it? But who has any right to find fault
    with a man who chooses to enjoy a pleasure that has no annoying
    consequences, or one who avoids a pain that produces no resultant pleasure?"
    Section 1.10.33 of "de Finibus Bonorum et Malorum", written by Cicero in 45
    BC "At vero eos et accusamus et iusto odio dignissimos ducimus qui
    blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et
    quas molestias excepturi sint occaecati cupiditate non provident, similique
    sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum
    fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero
    tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus
    id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis
    dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut
    rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et
    molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente
    delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut
    perferendis doloribus asperiores repellat." 1914 translation by H. Rackham
    "On the other hand, we denounce with righteous indignation and dislike men
    who are so beguiled and demoralized by the charms of pleasure of the moment,
    so blinded by desire, that they cannot foresee the pain and trouble that are
    bound to ensue; and equal blame belongs to those who fail in their duty
    through weakness of will, which is the same as saying through shrinking from
    toil and pain. These cases are perfectly simple and easy to distinguish. In
    a free hour, when our power of choice is untrammelled and when nothing
    prevents our being able to do what we like best, every pleasure is to be
    welcomed and every pain avoided. But in certain circumstances and owing to
    the claims of duty or the obligations of business it will frequently occur
    that pleasures have to be repudiated and annoyances accepted. The wise man
    therefore always holds in these matters to this principle of selection: he
    rejects pleasures to secure other greater pleasures, or else he endures
    pains to avoid worse pains."
  </p>
</div>

* {
  margin: 0;
  padding: 0;
  font-family: 'montserrat', sans-serif;
}
.header {
  height: 100px;
  background: #34495e;
  padding: 0 20px;
  color: #fff;
}
.logo {
  line-height: 100px;
  float: left;
  text-transform: uppercase;
}

.menu {
  float: right;
  line-height: 100px;
}
.menu a {
  color: #fff;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0 10px;
  transition: 0.4s;
}
.show-menu-btn,
.hide-menu-btn {
  transition: 0.4s;
  font-size: 30px;
  cursor: pointer;
  display: none;
}
.show-menu-btn {
  float: right;
}
.show-menu-btn i {
  line-height: 100px;
}
.menu a:hover,
.show-menu-btn:hover,
.hide-menu-btn:hover {
  color: #3498db;
}

#chk {
  position: absolute;
  visibility: hidden;
  z-index: -1111;
}

.content {
  padding: 0 20px;
}
.content img {
  width: 100%;
  max-width: 700px;
  margin: 20px 0;
}
.content p {
  text-align: justify;
}

@media screen and (max-width: 800px) {
  .show-menu-btn,
  .hide-menu-btn {
    display: block;
  }
  .menu {
    position: fixed;
    width: 100%;
    height: 100vh;
    background: #333;
    right: -100%;
    top: 0;
    text-align: center;
    padding: 80px 0;
    line-height: normal;
    transition: 0.7s;
  }
  .menu a {
    display: block;
    padding: 20px;
  }
  .hide-menu-btn {
    position: absolute;
    top: 40px;
    right: 40px;
  }
  #chk:checked ~ .menu {
    right: 0;
  }
}