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No. There is no HTML video format... -_-
That format is :- .doc
One should save their website logo in the HTML format. This is the most common web format and will work on the most devices which is important to reach as many people as possible.
Yes, nearly all pages must be in html.
Homepage can be created using HTML or various other languages. <table> can be used to create tabular format in HTML.
HTML format exists for emails to allow one to see the contents of web pages in emails. Many emails are now web based mail programs such as Yahoo and MSN so they are more suited to HTML format.
The primary benefit of saving a file in HTML format is that you can view it in a web browser. Files should be saved in a format that is compatible with the application using the file.
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HTML
There isn't really an HTML tag designated specifically for footnotes.
Align is an attribute included in the HTML format. You can align the position to be right, left or center.
HTML text is formatted text that you view on a HTML formatted page, a HTML tag is a tag which defines the formatting of a selected area of text, i.e opening tag "<u>" "text to format here", followed by closing tag "</u>" would underline the text that you wish to format. In short, HTML tag defines the format of the text. These basics can be applied to a range of different functions.