add smooth scrolling to mobile nav; simplify mobile nav offsets (bug 1109260, bug 1059002)
Add newsletter.styl.css back to dev.html
Commit from Mozilla Verbatim by user sara.todaro@mozillaitalia.org.: 316 of 316 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user sara.todaro@mozillaitalia.org.: 316 of 316 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user sara.todaro@mozillaitalia.org.: 316 of 316 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user sara.todaro@mozillaitalia.org.: 316 of 316 strings translated (0 fuzzy).