With the addition of !important it works (and also fixed it for the created events)! Thank you very much!
Thank you for your reply. I am already using Method 2. I now added some dummy text at the beginning which also starts too far right.
I used “bbP Live Preview” and “bbp style pack” as additional plugins, though they don’t seem to be responsible for this behavious (I already deactivated them). But: this also seems to happen to Events I created with the Plugin “Events Manager” (e.g. here). Every event is created as a page and I thought the alignment to be just normal behaviour. Apparently this is not the case…
Any other idea what might be causing this? I have included a screenshot of all used plugins.
Screenshof of Plugins