/* new or hot */
.answer-column i{
  position: absolute;
  top: 5px;
  right: -26px;
  width: 30px;
  height: 30px;
  background: url(../img/new_icon.svg)center no-repeat;
  background-size: contain;
}
.training-column i{
  position: absolute;
  top: 5px;
  right: -5px;
  width: 30px;
  height: 30px;
  background: url(../img/hot_icon.png)center no-repeat;
  background-size: contain;
} 
/* hot */
/*下拉选择框 */
.nav .menu .training-column{
  margin-right: 0px;
}

.training-select {
  line-height: 36px;
  position: absolute;
  top: 56px;
  left: -53px;
  width: 152px;
  border: 1px solid #ddd;
  border-radius: 4px;
  background: #fff;
  display: none; 
}

.menu .training-column .training-select a {
  font-size: 14px;
  color: #777;
  display: block;
  text-align:center;
}
.training-select a:first-of-type{
  margin-top: 10px;
}
.training-select a:last-of-type{
  margin-bottom: 10px;
}
.training-column a span{
   vertical-align: top;
   font-size: 14px;
   transition: transform .4s;
   display: inline-block;
}
.training-column .rotate {
  transform: rotate(180deg);
}
.training-column .radius {
  position: absolute;
  width: 10px;
  height: 10px;
  right: 12px;
  top: -6px;
  border-left: 1px solid #ddd;
  border-top: 1px solid #ddd;
  background: #fff;
  transform: rotate(45deg);
}
/*下拉选择框 */