Keyword meta tag

What is the right syntax

[specter]

Hi,

I'm wondering if exists a right syntax entering a multiple keyword in meta tags:
Example: I deal with "widgets" but I offer a variety of them such as "green widgets","brown widgets","white widgets","big widgets","little widgets" and so on.
What is the correct syntax including these keywords in the tag,between the two below:

"green,brown,white,little,big,widgets"

or

"green widgets,brown widgets,white widgets,little widgets,big widgets"

Any opinion will be appreciated

Regards

[mona]

Hi, specter. It doesn't really matter which way you put them because the tag is depreciated in the search engines. But I still use them, too. I use phrases, not individual keywords.