Examples of websites using
Helvetica Neue
(Helvetica Neue is a popular Sans Serif font designed by Max Miedinger and published through Linotype in 1961. The font family consists of multiple styles with different weights and matching italics)
with
Arial
(Arial is a sans-serif font designed by Robin Nicholas and Patricia Saunders and released by Monotype in 1982. It is available in a variety of styles, including regular, italic, bold, and bold italic)