body {
  background: transparent;
}
.back_img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.lyl .show {
  position: relative;
  width: 85%;
  cursor: pointer;
  margin: 12.6% auto 0;
  left: -0.5%;
}
.lyl .canvas {
  position: absolute;
  left: 0px;
  top: 0px;
  z-index: 1;
}
.lyl .backcanvas {
  position: absolute;
  left: 0px;
  top: 0px;
  z-index: 0;
}
.lyl .showleft {
  height: 16vw;
}
.lyl .showleft .showitem {
  position: relative;
  z-index: 3;
  width: 17.5%;
  height: 100%;
}
.lyl .showright {
  margin-top: 9.6%;
  height: 4vw;
  padding: 0 4%;
}
.lyl .showright .showitem {
  width: 9%;
  height: 100%;
  position: relative;
  z-index: 3;
}
.lyl .showright .showitem p {
  text-indent: 2em;
}