.qa_fade {
  opacity: 0;
}
.qa_fade-right {
  position: relative;
  opacity: 0;
}
.qa_fade-left {
  position: relative;
  opacity: 0;
}
.qa_fade-up {
  position: relative;
  opacity: 0;
}
.qa_fade-down {
  position: relative;
  opacity: 0;
}