normal

This value directs user agents to collapse sequences of whitespace, and break lines as necessary to fill line boxes. Additional line breaks may be created by occurrences of "\A" in generated content (e.g., for the BR element in HTML).

pre

This value prevents user agents from collapsing sequences of whitespace. Lines are only broken at newlines in the source, or at occurrences of "\A" in generated content.

nowrap

This value collapses whitespace as for 'normal', but suppresses line breaks within text except for those created by "\A" in generated content (e.g., for the BR element in HTML).

normal certainly isn't appropriate, because that would not preserve the indentation. pre is almost appropriate, however it disallowes the rendering engine to insert line-breaks, which means the div section the code is in may extend in width arbitrarily. nowrap is obviously inappropriate as well.

What I really need is something close to pre but which allows automatic line-breaks; problem is, to my knowledge there simply isn't anything of the sort!

If anyone has some good advice on how to add indented, syntax-highlit code blocks to my blog painlessly I would be much obliged. I know there are tools out there - I've tried one or two - but none gave me the sort of flexibility I require. I may just break up and write a parser/colorizer with a bit more customizability than what Drazen did (impressive though it is).