CSS not working properly

[Pablo]

My website: http:// davincigroep.elpablocs. be

Although I have clearly determined through CSS that my font-weight must me 700, this CSS rule does not work on all my pages, except for the home page:

• On my homepage, the CSS is applied by the browser: http://prntscr.com/g5udmp
• On all my other pages, the CSS is not being applied: http://prntscr.com/g5ug05

What is the cause of this and how can I fix it?

KInd regards,
Pieter

[Pablo]

Why do I not get a reply on this one?

[Pablo]

I this this issue is due to the font Roboto. I now replaced it with Helvecita Neue, and it works fine. Can you please check, because my client wants the font type of Roboto.