body {
  background-image: 
	  url("https://www2.nict.go.jp/spe/epb_feedback/assets/img/bg_body_rightTop.png"),
      url("https://www2.nict.go.jp/spe/epb_feedback/assets/img/bg_body_feedback.png");
  background-repeat:
     no-repeat,
     repeat-x;
  background-position: 
	 top right,
	 top left;
}