jquery 获取同级元素

$(".userinfo-three:eq(0)").css({

                "width": winWidth * 300 / 1080,

                "top": winWidth * 530 / 1080,

                "left": winWidth * 450 / 1080,

            });

            $(".userinfo-three:eq(1)").css({

                "width": winWidth * 300 / 1080,

                "top": winWidth * 700 / 1080,

                "left": winWidth * 220 / 1080,

            });

            $(".userinfo-three:eq(2)").css({

                "width": winWidth * 300 / 1080,

                "top": winWidth * 780 / 1080,

                "left": winWidth * 670 / 1080,

            });