#articleScrollContainer .article-scroll-icon-container {
  background-color: #fff;
  margin-bottom: 0.6rem;
  height: 3rem;
  cursor: pointer;
  width: 1.7rem;
  border: 1px solid #ddd;
  text-align: center;
  line-height: 3.5rem;
  border-radius: 3px;
  user-select: none;
}
#articleScrollContainer .article-scroll-icon-container:hover {
  background-color: #f4f4f4;
}
#articleScrollContainer .article-scroll-icon-container:active {
  background-color: #eee;
}