.backache_factor {
  padding: 2.5%;
}
.factor_title {
  position: relative;
  margin: 0 auto 40px;
  z-index: 0;
}
.factor_title h2 {
  width: 65%;
  margin: 0 0 20px auto;
}
.factor_title ul {
  width: 100%;
  margin: 0 0 20px auto;
}
.factor_title p {
  position: absolute;
  top: 0;
  left: 0;
  width: 38%;
  z-index: -1;
}
.backache_factor h3 {
  text-align: center;
  margin-bottom: 40px;
}
.backache_factor h3 span {
  display: table;
  margin: 0 auto 30px;
}
.backache_factor h3 span:nth-child(1) {
  width: 40%;
}
.backache_factor h3 span:nth-child(3) {
  width: 85%;
}
.backache_factor h3 span.line:before {
  bottom: 0;
  left: -10px;
  height: 50%;
}
.backache_factor h3 span.line.animation:before {
  width: calc(100% + 20px);
}
.backache_factor .title_under_read ,
.backache_factor .title_under_caption  {
  max-width: 500px;
  width: 100%;
}
.backache_factor .title_under_read {
  margin-bottom: 10px;
}
.backache_factor .title_under_caption {
  margin-bottom: 40px;
}
.backache_factor .read {
  margin-bottom: 30px;
  font-size: 20px;
  font-size: 2.0rem;
}
.backache_factor .read .color{
  font-weight: bold;
  color: #ff0000;
}
.backache_factor > dl {
  margin: 20px auto 0;
}
.backache_factor > dl dt {
  text-align: center;
  margin: 0 0 40px;
}
.backache_factor > dl dt.line:before,
.backache_factor > dl dt.line:after {
  background: #d8ffff;
  height: 20%;
  left: 5%;
}
.backache_factor > dl dt.line:before {
  top: 25%;
  width: 90%;
}
.backache_factor > dl dt.line:after {
  top: 85%;
  width: 68%;
  left: 13%;
}
.backache_factor > dl dd p {
  margin: 0 0 30px 0;
}
@media screen and (max-width: 414px){
  .backache_factor > dl dt {
    text-align: center;
    margin: 0 0 15px;
  }
  .backache_factor .title_under_caption {
    margin-bottom: 20px;
  }
  .backache_factor .read {
    margin-bottom: 15px;
    font-size: 16px;
    font-size: 1.6rem;
  }
  .backache_factor h3 span.line:before {
    left: 0;
  }
  .backache_factor h3 span.line.animation:before {
    width: 100%;
  }
  .backache_factor > dl dt {
    text-align: center;
    margin: 0 0 20px;
  }
}