.product-info-b .return-b {
  width: 62px;
  position: absolute;
  top: 0;
  left: 0;
  height: 89px;
  border-right: 1px solid #f2f2f2;
  background: url(../img/pro30.png) no-repeat center;
  transition: background .3s;
  display: none;
}
.product-info-b {
  background: #fafafa;
}
.product-info-list {
  width: 100%;
  height: 50px;
}
.product-itit {
  background: #fff;
  border-radius: 25px;
}
.product-info-list .slides span {
  display: none;
}
.product-info-list .slides li {
  text-align: center;
  line-height: 48px;
  position: relative;
  font-size: 18px;
  font-weight: 700;
  color: #333;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 25px;
}
.product-info-list .slides .on {
  border: 2px solid #c21a21;
  color: #c21a21;
}
.product-ajaxi {
  padding: 40px 30px 40px 30px;
	border-radius: 8px;
  background: #f2f2f2;
  margin-top: 24px;
}
.one_content {
  padding: 0 20px;
}
.product-ajaxi>p img {
  width: auto;
}