index.scss

.course-popup__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .5);
  z-index: 11;

  .iconfont {
    margin: 16px 0 0;
    font-size: 28px;
    color: #fff;
    cursor: pointer;
  }
}

.course-popup {
  width: 300px;
  padding: 20px 0;
  border-radius: 10px;
  box-sizing: border-box;
  background-color: #fff;
}

.course-popup__title {
  margin: 0 0 20px;
  font-size: 16px;
  font-weight: 500;
  color: #525C65;
  text-align: center;
  line-height: 1;
}

.course-popup__list {
  height: 190px;
  padding: 0 15px;
  overflow-y: auto;
}

.course-popup__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 30px;
  padding: 0 10px;
  border-radius: 4px;
  box-sizing: border-box;
  color: rgba(82, 92, 101, .6);
  background-color: #E7EDF2;

  &:nth-child(n+2) {
    margin-top: 10px;
  }

  &:hover {
    color: #fff;
    background-color: rgba(0, 153, 255, .6);;
  }
}

.course-popup__item--active {

  .course-popup__name {
    color:rgba(82,92,101,.6);
  }
}

.course-popup__name {
  width: 200px;
  font-size: 12px;
  color:rgba(82,92,101,1);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.course-popup-apptip{
  padding: 10px 15px 0 15px;
  color: #FF0000;
  text-align: center;
}