CodeHS Web Design (Picasso) Practice Test

The correct answer encompasses the use of HTML header tags and how they define the size and importance of the text content within a webpage. The `<h1>` tag represents the largest heading size, typically used for main titles or primary headers, making "Hello" within this tag appear the largest compared to the other headings. The `<h3>` tag is smaller than `<h1>`, so it renders "Hello" in a medium size, and the `<h6>` tag produces the smallest display of "Hello," which is the least emphasized heading.

By including all three elements, the output consists of one large "Hello", one medium "Hello", and one small "Hello". This hierarchy allows for a clear visual structure on a webpage, guiding users through information in order of importance. Thus, the provision of all three variations leads to the conclusion that the answer entails a combination of them, justifying why the correct response includes all three headings and their corresponding sizes.