is it correct ? 1NF example

I am trying to figure out 1nf in normalisation

1nf says that
1) no repeating groups
2) every row must be unique

i read some examples over net

and one of them is this

http://www.database-normalization.co...l-form-1nf.php

at bottom he created 2 tables for achieveing 1 nf
1)table_product_price (product_id,price)
2) table_product_color (product_id,color)

in second table (table_product_color) product_id is repeating in again and again and not following the 1nf second rules ie.. every row must be unique

can any one tell me .. i m wrong or right

thanks

A row contains multiple columns.

In order for a row/record to be unique, only one of the values needs to be different to another row.

In that example, "1","red" is different to "1","green".