.fa-caret-right:before {
    content: "\f0da";
}
.fl {
  float: left;
}
.fr {
  float: right;
}
/*清除浮动*/
.clearfix:before,
.clearfix:after {
  content: " ";
  display: table;
}
.clearfix:after {
  clear: both;
}
.clearfix {
  *zoom: 1;
  /*IE/7/6*/
}

.iconRotate {
  transform: rotate(90deg);
  transition: transform 0.5s;
}
.s-firstDrop,
.s-secondDrop {
  display: none;
}