Yes | No. The H1 uses two steel weights and one tungsten weight, the H2 uses two tungsten and one steel weight while the H3 uses three tungsten weights. If you have a standard buffer and you buy an H3 buffer you can use their weights to build both an H1 and an H2. 18 of 21 found the following answer helpful.
The h1 is the most important heading level, the h6 the least. In practice, for web content, you will use the h1 for the page title, give the most important sections an h2, and, if needed, add an h3 or maybe even an h4 to divide the content in the h2 section. You only need to start with the h1 if that makes sense for your content structure and The H1 tag is designed to be the biggest, boldest tag on your page—again, much like a newspaper headline. Having multiple H1s could lead to confusion, and it won’t help your ranking, so try to stick to only one! If you want to add additional headers or subheads, you will want to use the H2, H3, H4, etc. tags instead.

The heading is simply like a title. In HTML, it is structured by using heading tags such as H1, H2, H3, and H4. Normally, as the heading number gets bigger, the font gets smaller. In WordPress, the H1 heading is typically reserved for the Blog title found in the header or masthead of a page. The H2 heading is generally found in the post title

The car came in two variants: the H2 SUV and H2 SUT. Hummer H3; The third Hummer is the smallest of all and the one that actually fits in the garage. H3 has a 5.3-litre V8 engine with 239hp, 33-inch tires, and all the off-road capabilities as H1 and H2. As per definition — a midsize pickup truck for civilians — H3 is the best Hummer ever made. Zero or more elements, followed by one h1, h2, h3, h4, h5, or h6 element, followed by zero or more elements. Tag omission: None, both the starting and ending tag are mandatory. Permitted parents: Any element that accepts flow content. Implicit ARIA role: generic: Permitted ARIA roles: Any: DOM interface . 355 629 23 718 966 22 570 228

h1 vs h2 vs h3 vs h4