tests

src/index.ts

@@ -281,7 +281,8 @@ abstract class ChartwerkPod<T extends TimeSerie, O extends Options> {
       .append('svg')
       .style('width', '100%')
       .style('height', '100%')
-      .style('backface-visibility', 'hidden');
+      .style('backface-visibility', 'hidden')
+      .style('background-color', 'red');
     this.chartContainer = this.svg
       .append('g')
         .attr('transform', `translate(${this.margin.left},${this.margin.top})`);