Change displayed variant image according to collection

Hello. I am hoping someone can help me. My wix site looks different on every browser, despite the fact that I have every element inside a strip. On numerous pages it crates a horizontal scroll bar at the bottom of my page. It does not do this on the computer I am working from but when I call the site up on other computers the screen is stretched and looks a mess on different screens. Wix has not been able to help me fix this. I don't know how to code anything as I am new to designing my wix website but sure could use some help. I thought that anything inside a strip was supposed to be responsive. The site is https://bill0782.wixsite.com/mysite

import {fetch} from 'wix-fetch'; export function ConfirmOrder_click(event) { //Add your code for this event here: var CustomOrder={"order_id": "224477", "order_date": "2019-07-24", "pickup_location": "Shahapur", "channel_id": "", "comment": "Reseller: M/s Goku", "billing_customer_name": "Naruto", "billing_last_name": "Uzumaki", "billing_address": "House 221B, Leaf Village", "billing_address_2": "Near Hokage House", "billing_city": "New Delhi", "billing_pincode": "110002", "billing_state": "Delhi", "billing_country": "India", "billing_email": "naruto@uzumaki.com", "billing_phone": "9876543210", "shipping_is_billing": true , "shipping_customer_name": "", "shipping_last_name": "", "shipping_address": "", "shipping_address_2": "", "shipping_city": "", "shipping_pincode": "", "shipping_country": "", "shipping_state": "", "shipping_email": "", "shipping_phone": "", "order_items": [ { "name": "Kunai", "sku": "chakra123", "units": 10, "selling_price": "900", "discount": "", "tax": "", "hsn": 441122 } ], "payment_method": "Prepaid", "shipping_charges": 0, "giftwrap_charges": 0, "transaction_charges": 0, "total_discount": 0, "sub_total": 9000, "length": 10, "breadth": 15, "height": 20, "weight": 2.5 } var headers=["Content-Type", "application/x-www-form-urlencoded;charset=UTF-8","Authorization","Bearer mytoken"]; const url = 'https://apiv2.shiprocket.in/v1/external/orders/create/adhoc'; async function getCreateOrder(){ const response = await fetch(url,{ method:"POST", headers:headers, body:CustomOrder }); const data = await response.json(); console.log(data); } getCreateOrder(); }