.musicBox.on .m_b {
  display: inline-block;
}
.musicBox.on .m_s {
  display: none;
}
.musicBox .m_b {
  display: none;
}
.musicBox .m_s {
  display: inline-block;
}
.showChose {
  width: 86%;
  top: 53%;
  left: 7%;
}
.showBtn {
  top: 29%;
}
.content .bg3 {
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}
.content .bg3 .bg5_1 {
  position: relative;
}
.section-content {
  position: relative;
  min-height: 100%;
}
.section-content .section-bg {
  position: relative;
  width: 100%;
}
.section-content .section-inner {
  position: absolute;
  left: 0;
  height: 100%;
  width: 100%;
  top: 0;
  z-index: 10;
}
.bg4 .flexbox {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.bg4 .share-poster {
  flex-grow: 1;
  flex-shrink: 1;
  height: 100%;
  width: 95%;
  left: 2.5%;
  background: url("../images/sharebg.png") no-repeat center/contain;
  position: relative;
  box-sizing: border-box;
  padding: 0.6rem;
  overflow: hidden;
}
.bg4 .share-poster .share_img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: contain;
  left: 0;
  top: 0;
}
.bg4 .button-wrap {
  flex-grow: 0;
  flex-shrink: 0;
  text-align: center;
  margin: 0.1rem 0 1rem;
  width: 100%;
}
.bg4 .button-wrap .button {
  position: relative;
  top: 0;
  display: inline-block;
  left: 0;
  vertical-align: top;
  margin: 0 0.1rem;
}
.share_jt {
  width: 60%;
  left: 20%;
  top: 50%;
  margin-top: -2.5rem;
}