Hi Bibhas,
In addition to what Tufale has mentioned above, the first line in your html page should be
<!DOCTYPE HTML> alongwith the<meta http-equiv="X-UA-Compatible" content="IE=edge"> in the head tag.
This enables the UI5 page to render in Compatible Mode even if the settings in your browser are set to run in 'Quirks' Mode.
As per UI5 standard guidelines, the UI5 pages are supported only in compatible mode of the browser.
Thanks,
Rutika