.font12 {
  font-size: 12px;
}

.font14 {
  font-size: 14px;
}

.font16 {
  font-size: 16px;
}

.font-bold {
  font-weight: bold;
}

.clearfix:after {
  visibility: hidden;
  display: block;
  font-size: 0;
  content: " ";
  clear: both;
  height: 0;
}

.fl {
  float: left;
}

.fr {
  float: right;
}