Contact Form 7 produces standard HTML form elements, so you can follow the approach given in that article in your Contact Form 7 forms. As noted in the article, cross browser support may problematic.
See Styling Contact Form for a general explanation of styling CF7 forms using CSS.
There is a link at the bottom of the page to a comprehensive and detailed article on Styling Contact Form 7 Forms. The article shows people, with suitable HTML & CSS skills, how to change the appearance of their Contact Form 7 Forms to meet their particular requirements.
Thanks, I didn’t knew this.
I did add the checkboxes with the same name attribute. But when I’ll chose multiple checkboxes only one value will appear in the e-mail sended.
The name attribute I use is name="offerte", the output is Offerte keuze: [offerte].
Familiar with this problem?
Thanks for the help so far ;)!