* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.menu {
  background-color: #1b1b1b;
  padding: 12px 16px;
}
.nav-link {
  color: #fff;
  padding: 12px 16px;
  text-decoration: none;
  font-size: 17px;
  text-align: center;
}
.nav-link:hover {
  background-color: rgb(70, 233, 233);
  color: #000;
  font-weight: 500;
  transition: 0.3s ease-in-out;
  border-radius: 2px;
}
.bars {
  display: none;
  color: #fff;
}
@media screen and (max-width: 768px) {
  .menu .nav-link:not(:first-child) {
    display: none;
  }
  .bars {
    float: right;
    display: block;
    color: #fff;
    transition: 0.3s ease-in-out;
  }
}
@media screen and (max-width: 768px) {
  .menu.responsive {
    position: relative;
    transition: 0.3s ease-in-out;
  }
  .menu.responsive .bars {
    position: absolute;
    right: 0;
    top: 0;
    transition: 0.3s ease-in-out;
  }
  .menu.responsive .nav-link {
    float: none;
    display: block;
    text-align: left;
    transition: 0.3s ease-in-out;
  }
}