iphone se width 375 px height 667

this is iphone 12pro width 390 height 844

this is code

<rect x={el.x/(device.width/86)} y={el.y/(device.height/186)} width={el.width/(device.width/88)}
                                          height={el.height/(device.height/190)}
                                          rx="3.75" stroke="black"
                                          strokeOpacity="0.1"
                                          strokeWidth="0.5">
                                    </rect>

            <meta name="viewport" content="width=device-width, height=device-height, initial-scale=1" />

Created element on web and trying to use it as booking elements for mobile app ( like webview in app ) and can't adapt it correctly