.category_index {
  margin-top: 40px;
  border: #3bf solid 2px;
  box-shadow: 5px 5px 5px rgba(51,187,255,0.3);
}
.category_index .category-list {
  margin: 30px;
}
.category_index .category-list .category-list-item {
  width: 150px;
  height: 50px;
  line-height: 50px;
  font-size: 16px;
  display: inline-block;
  white-space: nowrap;
}
.category_head {
  font-size: 26px;
}
.category {
  width: 100%;
  line-height: 30px;
  padding-left: 30px;
  float: left;
  border-left: rgba(51,187,255,0) solid 3px;
}
.category:hover {
  border-left: #3bf solid 3px;
  background-color: rgba(51,187,255,0.3);
}
.category .category_title {
  width: 70%;
  float: left;
}
.category .category_title a {
  display: block;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.category .category_tags {
  width: 30%;
  float: right;
}
.category .category_tags .tag-list-item {
  display: inline;
  margin-right: 15px;
}