https://unimitino.ru/images/pages/mytye_okon_vybiraem_ghidkosty_i_schetku_dlya_stekol_ili__speshim_v_kliningovuyu_kompaniyu_.html

This is display.cgi (source). It takes some text you enter into a form, and displays it for you as HTML. This is a great way to see how some HTML code looks in your (or someone else's) browser. So paste 'n go: