.category {
  margin-top: 50px;
  text-align: center;
  overflow: hidden;
}

.category li {
  margin-top: 20px;
}

.category li a {
  display: inline-block;
}

@media (max-width: 768px) {
  .category {
    margin-top: 0px;
    text-align: center;
  }
  .category li {
    overflow: hidden;
    margin: 15px -10vw;
  }
}