@media (max-width: 1800px) {
  .contents {
    grid-template-columns: repeat(4, 1fr);
  }
  .following-page .following-channel-contents {
    grid-template-columns: repeat(3, 1fr);
  }
  .following-page .following-channel-bannar-profile {
    grid-area: 1/1/3/4;
  }
  .your-channel-page .your-channel-contents {
    grid-template-columns: repeat(4, 1fr);
  }
  .your-channel-page .your-channel-bannar-profile {
    grid-area: 1/1/3/5;
  }
  .videos-and-watch-dates .watched-videos{
    grid-template-columns: repeat(4 ,1fr);
  }
}