Hi @paul2009 thanks for sharing the CSS code for this style change. It is my first time using CSS so I may have not done this properly, but I just copied and pasted the two lines code into Settings > Advanced > Code Injection > Footer: as indicated,. And hey presto it did split the two lines of the product title. However it left the "|" symbol showing on the product details page.
Also when I copied and pasted the styling code for the 2nd line of product title nothing changed even when I changed the font size to a smaller one in case the product title font was also 22px.
Can you help at all?