.title-gap {
  width: 100%;
  height: 2px;
  background-color: #b70a0a;
  margin: 10px 0;
}
.article-title {
  font-size: 25px;
  font-weight: bold;
  text-align: center;
}
.article-info {
  font-size: 15px;
  color: #717171;
  display: flex;
  justify-content: center;
}
.article-info p {
  margin: 10px 10px 0;
}
.article-content {
  min-height: 400px;
}
.article-teacher,
.article-content {
  padding: 10px 20px;
}
.article-teacher {
  display: flex;
  align-items: center;
}
.article-teacher .at-img {
  width: 225px;
}
.article-teacher .at-name {
  font-size: 25px;
  font-weight: bold;
  margin-bottom: 10px;
}
.article-teacher .at-info {
  font-size: 20px;
  line-height: 40px;
}