It is done as it should be, but still not working. anyone can help?
Not sure, but it might be because you used <Style> instead of <style>.
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True, I fixed it. Thanks 
In that case, it’s a bug in the tests:
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.
W3 HTML spec - Case insensitivity in tag names and attribute names
With that said, by far the most common style for HTML tag names is <tag>. <TAG> is a distant second, and <Tag> is almost unheard of.
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