Signup form with vanilla css, javascript

Hey guys,

I'm quite happy with the final product and learned a whole lot from this challenge. Feedback are much appreciated and I also have a specific question. When I set the input type to email the browser automatically throws an error message when the format is incorrect. This prevents the styled error message I made from showing up. The only way I could make it work was to get rid of the type="email" of the email input field. I would like to write semantically correct markup, is the input type important? Is there a way to do this better?

Thanks and have a lovely day everyone :)