.blockScreen {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.6);
  position: fixed;
  z-index: 200;
}
.blockScreen .priceResearchDiv {
  position: relative;
  width: 1200px;
  background-color: white;
  margin: auto;
  margin-top: 100px;
  height: auto;
  min-height: 600px;
}
.blockScreen .priceResearchDiv .platformHistory {
  padding-top: 30px;
}
.floatBtn {
  display: none;
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #2b2e3d;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  box-shadow: 2px 2px 3px #999;
}
.floatBtn .pBtn {
  margin-top: 17px;
  font-size: 26px;
}