RE: Marketing form: how to style checkbox align with label
Hi, Carolin
In order to align the checkbox and the label, please switch to the tab of HTML.

Find the label of the Checkbox.

Add following code into the position marked with red underline.
style='vertical-align: top;'
Since the original default alignment is center alignment, but it looks like the text is still sinking, so change the vertical alignment of the text to top. This allows the text to be aligned with the checkbox.

If this helped you, I'd appreciate it if you'd mark this as a Verified Answer, which may in turn help others as well.
Best Regards,
Nya