What is a strapline in a newspaper article?

a Tagline is essentially a slogan, like ( All the News that's fit to Print) the motto of the New York Times. The tag may come from the idea of a gift tag or price tag which has certain essential information on the product to be given or sold. Tag means Day in German, which might tie into Daily nature of most Newspapers. a Tagline is essentially a slogan or catch phrase.