.page-content {
  padding: 30px 0 10vh;
  min-height: 50vh;
}

.course-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 40px;
}

.tab-left {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  flex-wrap: wrap;
}

.tab-item {
  width: 120px;
  height: 40px;
  line-height: 40px;
  margin-bottom: 15px;
  text-align: center;
  font-size: 16px;
  color: #333;
  text-decoration: none;
  margin-right: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-radius: 5px;
}

.tab-item:hover {
  background-color: #f7f7f7;
  text-decoration: none;
}

.tab-item.active {
  background-color: #007bff;
  color: #fff;
}

.course-list {
  padding: 15px 0 30px;
  overflow: auto;
}

.course-list .table {
  border: 1px solid #dee2e6;
  min-width: 500px;
}

.course-list .table td,
.course-list .table th {
  text-align: center;
  color: #333;
  font-size: 14px;
  line-height: 25px;
  vertical-align: middle;
}

.pagination-box {
  padding-top: 15px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
}