.flex {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-around;
}

section.ex-sec {
  width: 1200px;
  margin: 0 auto;
  background-color: #E6E6E6;
  border-radius: 7px;
  padding: 16px 0;
}

section.ex-sec ul.content-list {
  width: 445px;
  align-content: space-between;
}

section.ex-sec ul.content-list li {
  background-color: #fff;
  border-radius: 10px;
  padding: 24px 15px;
  position: relative;
}

section.ex-sec ul.content-list li:hover {
  cursor: pointer;
}

section.ex-sec ul.content-list li.active {
  background-color: #DC0000;
  color: #fff;
}

section.ex-sec ul.content-list li.active::after {
  position: absolute;
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-top: 13.5px solid transparent;
  border-left: 21px solid #DC0000;
  border-bottom: 13.5px solid transparent;
  top: 50%;
  transform: translateY(-50%);
  right: -10px;
}

section.ex-sec ul.content-list li p.title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 10px;
}

section.ex-sec ul.content-list li p.intro {
  font-size: 20px;
  line-height: 27px;
}

section.ex-sec ul.img-list li {
  display: none;
}

section.ex-sec ul.img-list li img {
  width: 100%;
}

section.ex-sec ul.img-list li.active {
  display: block;
}

section.ex-sec2 {
  width: 1200px;
  margin: 0 auto;
}

section.ex-sec2 ul {
  justify-content: space-between;
}

section.ex-sec2 ul li {
  width: 290px;
  position: relative;
  margin-bottom: 10px;
}

section.ex-sec2 ul li img {
  width: 100%;
}

section.ex-sec2 ul li p {
  font-size: 24px;
  position: absolute;
  width: 100%;
  text-align: center;
  bottom: 35px;
  color: #fff;
}

section.ex-sec2 ul li span {
  display: block;
  width: 69px;
  height: 3px;
  background-color: #fff;
  position: absolute;
  bottom: 25px;
  left: 50%;
  transform: translateX(-50%);
}