Use this in Chrome to easily preview: https://developer.chrome.com/docs/devtools/device-mode/ https://developer.chrome.com/docs/devtools/device-mode/ It's what

Use this in Chrome to easily preview: https://developer.chrome.com/docs/devtools/device-mode/ https://developer.chrome.com/docs/devtools/device-mode/ It's what web developers generally use. I'd guess most sites stop their main content expanding beyond a standard desktop width and center the content. I've never worked with a web designer or client who has specified what should happen on very large screen widths, it's just not on their radar.