As an expert in web technologies, I can tell you that when it comes to HTML tags, the case of the tag names does not affect how they are interpreted by web browsers. HTML is defined as a case-insensitive language, which means that whether you write a tag name in uppercase, lowercase, or a combination of both, it will be understood in the same way. For example, the following tags are considered equivalent by an HTML parser: ```html

This is a heading

This is a heading

THIS IS A HEADING

``` read more >>

In documents in the HTML syntax: Tag names for HTML elements may be written with any mix of lowercase and uppercase letters that are a case-insensitive match for the names of the elements given in the HTML elements section of this document; that is, tag names are case-insensitive.read more >>