message: added default className to Modal.Content
diff: @@ -2,7 +2,7 @@ import React, { PureComponent } from "react";
  export default class Content extends PureComponent<IModalContentProps> {
  public render() {
  - const {children, className} = this.props;
  + const {children, className = ""} = this.props;
  return <div className={`q-modal-content ${className}`}>{children}</div>;
  }
  }
  