Problematic text position

Hi guys i have some trouble with the position of a text box in the web display.
mi text is 100 px an position to the top left corner of a picture in the editor view but goes at 125 px and go above te picture in the published browser view.
can someone help me fix this.

Check for negative margins at your docking points.
It might also be a viewport size issue.
There really is a lot of information missing to understand what’s happening.
screenshots might help.