.block-back-to-top-block {
  position: fixed;
  width: 48px;
  height: 48px;
  right: 24px;
  bottom: 48px;
  opacity: 0;
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.79);
  backdrop-filter: blur(17px);
  -webkit-backdrop-filter: blur(17px);
  transition: all cubic-bezier(0.4, 0, 0.2, 1) 0.375s;
  cursor: pointer;
  z-index: 1;
}
@media (min-width: 769px) {
  .block-back-to-top-block {
    right: 24px;
    bottom: 48px;
  }
}
.block-back-to-top-block.show {
  opacity: 1;
}
.block-back-to-top-block .back-to-top,
.block-back-to-top-block a,
.block-back-to-top-block svg {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
}