Arial, PF Din Text with PF Synch in action on mindworks.gr

Under the hood

.header-1 { font-family: pf_synch_proregular; font-size: 34px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 38px; text-transform: none; color: #FFFFFF; background-color: #CB0948; }
.header-2 { font-family: pf_din_text_comp_proregular; font-size: 78px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 65px; text-transform: none; color: #FFFFFF; }
.content-1 { font-family: Arial; font-size: 16px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 22px; text-transform: none; color: #E3E3E3; }

Arial is available from Fonts.com and MyFonts.