shengnian-editor/lib/ui/UploadButton.css

Shengnian React Rich Text Editor

.root {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.input {
  position: absolute;
  top: 0;
  right: 0;
  margin: 0;
  padding: 0;
  width: 32px;
  height: 32px;
  cursor: pointer;
  opacity: 0;
  filter: alpha(opacity=0);
}