Help? Pictures not showing in WP editor:

Regarding to this page (https://www.stolpejaktenbergenvest.no/)

The pictures are not showing up. I tried to clear cache, browser history and all cookies. It looks the same in Google Chrome and Safari. I have also tried to change file format from gif, jpg to png. The same thing happens with all photos.
When I open the final page on another computer, everything looks fine… It is just in my editor it looks bad. The same thing happens on another page I am editing (see further down at the bottom of this page).

This is how «stolpejaktenbergenvest.no» looks in my editor (only the picture subtext is showing):

This is how it looks in my media gallery:

This is how it looks in Google Chrome or Safari:

This is how it is supposed to look:

The same thing happens on another webpage (www.layoutreklame.no)

This is how my media library looks like: