PR: https://github.com/wmde/fundraising-banners/pull/405

@AbbanWMDE Some issues I found:

• The automatic sliding stops after displaying the 3rd slide. @CorinnaHillebrand_WMDE did a fix for the same issue in mobile banners on wikipedia.de.
• The progress bar labels in the first slide should display after the animation finishes.
• The payment type option "Sofort" should be disabled when choosing a recurring payment.
• There is an issue with the close button overlapping the headline or the headline wrapping on narrower screens.
• The blue line left and right of the headline is missing.

@AbbanWMDE If the headline wraps, the line surrounding the headline doesn't make sense, so I crossed that out in my comment above.

@kai.nissen I made it work. I left aligned the headline at 400px and then made it decrease font size bit by bit down to 320

@AbbanWMDE One more thing I just noticed:

@kai.nissen That's fixed now, plus I integrated the new progressbar label stuff so they're now showing the correct values in the correct places

Thanks, @AbbanWMDE! Not sure about the smaller font size for the headline, but that shouldn't be a show stopper. I noticed that in the expanded variant banner the progress bar labels overlap. I think, we should reduce the font size to 14px below 360px.