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Thanks for the response,

I've found it here http://www.dailytechpost.com/index.php/8-best-tips-for-css-for-seo/#comment-69311 amongst several other places.  I'm not in to stuffing keywords and fully aware that writing natural prose is the way to go, it was more a reference for where there is an excessive amount of keywords coincidently, such as when using technical terms which cannot be substituted and form part of every element of a text.  Or perhaps if you are talking about a concept and natural prose feels a little repetitive, such as writing about infographics.

I've read in a few places now that if you absolutely have to use a key term several times in a piece of copy, then it is preferable to use li and ul tags, as google will not penalise excessive density of keywords found in these tags.  Does anyone know if there is any truth in this?

Thanks for the response,

I've found it here http://www.dailytechpost.com/index.php/8-best-tips-for-css-for-seo/#comment-69311 amongst several other places.  I'm not in to stuffing keywords and fully aware that writing natural prose is the way to go, it was more a reference for where there is an excessive amount of keywords coincidently, such as when using technical terms which cannot be substituted and form part of every element of a text.  Or perhaps if you are talking about a concept and natural prose feels a little repetitive, such as writing about infographics.