.classroom {
  width: 860px;
}
.classroom .header {
}
.category {
  margin-top: 10px;
}
.category .el-button {
  margin-left: 0;
  margin-right: 10px;
  margin-bottom: 10px;
}

.classroom .search .el-input__suffix {
  right: 0;
}

.classroom .body {
  margin-top: 10px;
  height: calc(100vh - 550px);
  overflow-y: auto;
  border: 1px solid #ebeef5;
}

.classroom .body .item {
  border-top: 1px solid #ebeef5;
  padding: 20px 10px;
  display: flex;
  cursor: pointer;
  height: 140px;
}
.classroom .body .item:first-of-type {
  border-top: none;
}

.cover {
  width: 210px;
  height: 100%;
  overflow: hidden;
  border-radius: 5px;
}
.right {
  margin-left: 20px;
  flex: 1;
  padding-bottom: 30px;
  position: relative;
}
.right .title {
  font-weight: 600;
  font-size: 16px;
  line-height: 24px;
  color: #252933;
}
.right .desc {
  margin-top: 10px;
  font-size: 13px;
  line-height: 22px;
  color: #8a919f;
}

[class*="ellipsis"] {
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  white-space: normal;
}

.ellipsis-2 {
  -webkit-line-clamp: 2;
}

.ellipsis-3 {
  -webkit-line-clamp: 3;
}

.data {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: absolute;
  bottom: 0;
  left: 0;
}

.data .el-icon {
  color: #8a919f;
  font-size: 14px;
}
.data .el-icon span {
  margin-left: 3px;
}

.pagination {
  text-align: right;
  margin-top: 10px;
}

.empty {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  color: #8a919f;
  font-size: 18px;
}

.editor-drawer .title {
  margin-bottom: 12px;
  margin-left: 0px;
  font-weight: bold;
  font-size: 22px;
  text-align: left;
}

.editor-drawer .el-drawer__body {
  padding: 0 28px;
  overflow-y: auto;
}
.editor-drawer .el-drawer__body .mce-item-table {
  padding: 0 20px;
}

.editor-drawer .datetime {
  text-align: left;
  font-size: 13px;
  color: #868e96;
  padding-left: 0.2rem;
  margin-top: -3px;
  margin-bottom: 2.2rem;
}