Using pre-installed Google fonts on a paragraph

Hi,

I would like to use a Google font from the list of preloaded available Google fonts (Lato or Open Sans) to just one paragraph. I added the a class code (photogallery) to the element and then the following css to Quick CSS. The size and style are working (so I know it correctly finding the code) but not the font-family.

.photogallery p {
font-family: ‘lato’ !important;
font-size: 60px;
font-style: italic;
}

Do I have add something more even though the Google fonts are preloaded?

Thanks!