main > h1 {
  font-size: 2.3rem;
  font-weight: 700;
  letter-spacing: -.1rem;
  margin-bottom: 2.5rem;
  background: url("../img/point.png") no-repeat 0 50% / 2rem;
  padding-left: 2.8rem;
  color: #2673b0;
}
main .quiz_wrap ul li {
  border: 1px solid #ddd;
  border-radius: .5rem;
  overflow: hidden;
  box-shadow: rgba(99, 99, 99, 0.1) 0px 2px 5px 0px;
}
main .quiz_wrap ul li:not(:last-child) {
  margin-bottom: 2rem;
}
main .quiz_wrap ul li .question {
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: -.1rem;
  line-height: 1.5;
  padding: 1.5rem;
}
main .quiz_wrap ul li .ox_wrap {
  display: flex;
  align-items: center;
  border-top: 1px solid #ddd;
}
main .quiz_wrap ul li .ox_wrap span {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  width: 50%;
  text-align: center;
  padding: 1.5rem;
}
main .quiz_wrap ul li .ox_wrap .O {
  border-right: 1px solid #ddd;
  color: #1dac1d;
}
main .quiz_wrap ul li .ox_wrap .X {
  color: #d60000;
}
main .quiz_wrap ul li .exp {
  display: none;
  font-size: 1.7rem;
  line-height: 1.6;
  font-weight: 500;
  padding: 1.5rem;
  border-top: 1px solid #ddd;
  letter-spacing: -.1rem;
  color: #666;
}
main .quiz_wrap ul li .exp span {
  display: block;
  font-size: inherit;
  font-weight: 600;
  margin-bottom: 1rem;
}
main .quiz_wrap ul li .exp b {
  font-weight: 700;
}
main .quiz_wrap ul li .exp b.o {
  color: #1dac1d;
}
main .quiz_wrap ul li .exp b.x {
  color: #d60000;
}