hotfix

src/components/markers.ts

@@ -126,8 +126,7 @@ export class Markers {
       .html(marker.html);
 
     // align tooltip: center (we need it to be rendered first)
-    // PS: 8px is the empiric constant to center the div ideally
-    div.style('left', `${linePosition + this._margin.left - div.node().getBoundingClientRect().width / 2 + 8}px`)
+    div.style('left', `${linePosition + this._margin.left - div.node().getBoundingClientRect().width / 2}px`)
   }
 
   protected renderSerie(serie: MarkerSerie) {