Arrow distance from site borders in portfolio prev/next pagination - 7.1

Hello,
I have a problem with the arrows position in prev/next pagination.
The arrows are very close to the link and right site borders.

Where can I set a pixel value in order to have a distance from the borders?

Thank you in advance
Teresa

Please post the URL for the page on your site with these links.

If your site is not public please set up a site-wide password, if you've not already done so.

Post the password here.

Adding a site-wide password is not a security breach. Please read the documentation at the link provided to understand how it works.

We can then take a look at your issue.

Thanks for your answer.
I have contacted the help desk.
I have forgot to set the site margin in Design > Site Styles > Spacing > Site Margin

Teresa