Google weighs H1 tags different than a page`s body text. Would the same thing apply to an H1 class?

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  David Alford: Google weighs H1 tags different than a page's body text. Would the same thing apply to an H1 class?
  
  Example: <p class="h1">Paragraph text gets the H1 style</p>
  
  Can I use that without fear that Google will interpret it as a Headline?
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  Federico Sasso: > Can I use that without fear that Google will interpret it as a Headline?
  Fear not
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  Tim Capper: Ditto +Federico Sasso ;
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  Edwin Jonk: From the expert panel in this weeks SEO Questions hangout on air on 00:31:35 into the YouTube video: https://dumbseoquestions.com/q/google_weighs_h1_tags_different_than_a_pages_body_text_would_the_same_thing_apply_to_an_h1_class +David Alford
  
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  Andrei Gherghel: The H tags are used as heading elements while the class attribute specifies one or more classnames for an element.The class attribute is mostly used to point to a class in a style sheet. However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class. So, class and H1 are 2 different things. No search engine would confuse and element with a class.