WEB | colocar código html "as is"

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Por vezes, precisamos de inserir código que apareça como texto normal no ecrã.
Para o browser não tentar transformar o texto e tratar o código, é necessário "dizer-lhe" que não estamos a inserir uma tag mas sim texto (código ascii):

[<] = [<] (do lado direito é codigo ascii) --> &#60;

[>] = [>] (do lado direito é codigo ascii) --> &#62;

[ ] = [ ] (do lado direito é codigo ascii) --> &#32;

[#] = [#] (do lado direito é codigo ascii) --> &#35;

[&] = [&] (do lado direito é codigo ascii) --> &#38;


ASCII HTML:
http://www.ascii.cl/htmlcodes.htm

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