* {
  user-select: none;
}
.row {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  flex-wrap: wrap;
}
.row > [class*='col-'] {
  display: flex;
  flex-direction: column;
}
.mt {
  margin-top: 40px;
}

.mb {
  margin-bottom: 40px;
}

.tab {
  font-size: 18px;
}

.tab span {
  color: #02A7F0;
}

.introduce {
  width: 100%;
  background: #f2f4f5;
  border-radius: 20px;
  padding: 12px;
  color: #666;
  font-size: 16px;
}

.introduce ol {
  margin-top: 10px;
  margin-bottom: 0;
  padding-left: 26px;
}

.introduce li {
  list-style: disc;
  line-height: 28px;
}

.introduce h5 {
  font-size: 22px;
  line-height: 60px;
  border-bottom: 1px solid;
  text-align: center;
  color: black;
}

.product-img {
  width: 100%;
  height: auto;
}

.product-img-height {
  width: auto;
  height: 100%;
}

@media screen and (max-width: 991px) {
  .mt {
    margin-top: 20px;
  }
  .mb {
    margin-bottom: 20px;
  }
  .mb-0 {
    margin-bottom: 0;
  }
  .product-img-height {
    width: 100%;
    height: auto;
  }
}