webview/public/pdf/style/download.css

.download-container {
  position: fixed;
  bottom: 8px;
  right: 8px;
  z-index: 11;
  padding: 8px;
  width: 36px;
  height: 36px;
  background-color: #12312c;
  border-radius: 50%;
  
  display: none;
}

.download-container svg {
  width: 100%;
  height: 100%;
  fill: #38ff6e;
}