Gallery and headings doesn't apear

I just found out that the headings on a few pages doesn’t apear. For the last 2 monthes i didn’t change anything on the website.
The problem is that in the first second, when the page is loading, the headings are visible but then it’s fading out. Al the pictures, gallery’s etc. are unvisible.

Examples:

etc.

Please can we fix this asap? A lot of content at the website is unreadable / not showing.

• This topic was modified 8 years, 7 months ago by skeereweer.