Here's the scenario:
In this case, the page title is designated as H3, the article title is labeled as H2, and a certain keyword or important sentence is identified as H1 within the content. These elements have custom CSS classes applied to them, causing the H3 to resemble an H1 and the H1 to appear as regular text. Is this practice indicative of grey/black hat SEO techniques, or does Google disregard the rendered size of these elements?