#main-logo{
  height: 700px;
  width: auto;
  margin-top: -88%!important;
  display: block;
  margin: 0 auto;
  text-align: center;
  margin-bottom: 100px;
}

.jumbotron{
  background-image: url("../images/bg-1.jpg");
  max-width: 100%;
  height: 1800px;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  z-index: -1;
  border-radius: 0;
  margin-bottom: -20px;
}

nav ul li a{
  line-height: 80px;
  padding: 15px 30px;
  text-decoration: none;
  text-transform: uppercase;
  transition: .3s;
  color: #616161!important;
  font-weight: 600;
}

.game-canvas{
  margin-top: 50%;
}

@media (max-width: 1440px) {
  #main-logo{
    margin-top: -1650px!important;
  }

  .game-canvas{
    margin-top: 60%;
  }
}