/* 主题*/
.main-content {
  width: 1200px;
  margin: 0 auto;
}
.article {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.article h1 {
  font-size: 22px;
  font-weight: bold;
}
.article  .publish {
  padding: 10px 0;
  color: #999;
}
.article .article-content img {
  max-width: 100%;
  margin: 3px 0;
}