.test000-yajirushi:before {
  display: block;
  content: "\f107";
  font-family: "FontAwesome";
  font-weight: 900;
  line-height: 1;
  position: absolute;
  width: 1em;
  height: 1em;
  top: 6px;
  left: 53px;
  transition: 0.3s linear;

}

 .dt.active.test000-yajirushi:before {
  transform: rotate(180deg);
}

.faq-list dd {
  display: none;
}