Donut charts will resize to fill the available space. Avoid using them at widths below 200px and heights below 150px.
Donut charts retain their aspect ratio regardless of the width of their container, flexing their size fluidly to become larger or smaller. The legend exists in a separate container, donut-legend-container, allowing teams to determine their own responsive behavior.
Strive for short, succinct axis labels and legend items that clearly describe the data.