Plugin: Contact Form 7 checkbox problem

Hello,

There are many topics about this problem but I haven’t found my solution jet so I hope someone know what to do.

I’m building a contact form with the plugin like I did several times before without any problem. But now there is an extra space between the checkbox and the content surrounding it.
I tried things as adapting the span.wpcf7-list-item in the css and looked in the css thats comes with the theme but I can’t find the thing that causing this.

Does someone know what to do?
You can find the page here…
http://lottebode.nl/inschrijfformulier/

Thank you very much.