.sidebar {
  width: 30%;
  display: grid;
  gap: 1.5rem;
  align-self: flex-start;
}

.sidebar-posts-list {
  display: block;
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-post-item-img {
  max-width: 80px;
  max-height: 80px;
  flex-shrink: 0;
}

.sidebar-post-item-img img {
  width: 100%;
  height: auto;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .sidebar {
    width: 90%;
    margin: 0 auto;
  }
  .sidebar-post-item-img {
    max-width: 60px;
    max-height: 60px;
  }
}