prosekit/dist/extensions/gap-cursor/style.css

ProseKit: A toolkit for building rich text editors.

/* ../extensions/src/gap-cursor/style.css */
.ProseMirror-gapcursor {
  display: none;
  position: relative;
  pointer-events: none;
}
.ProseMirror-gapcursor:after {
  display: block;
  position: absolute;
  top: -2px;
  width: 20px;
  border-top: 1px solid currentColor;
  content: "";
  animation: ProseMirror-cursor-blink 1.1s steps(2, start) infinite;
}
@keyframes ProseMirror-cursor-blink {
  to {
    visibility: hidden;
  }
}
.ProseMirror-focused .ProseMirror-gapcursor {
  display: block;
}

/* src/extensions/gap-cursor/style.css */