Examples of websites using
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)
with
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)