Custom coding

Hello there!
Hope you’re having a fantastic week so far.

I LOVE your contact 7 form. It is truly an awesome plugin.

I did some custom coding on the contact form. I made the asterisk the color red. But there is an underline right underneath as you can see here on the website: https://www.marioneisenmann.net/contact/

My question is how can I get rid of the line under the asterisk? Can that be done? Can I do that? I guess I am just asking for your help.

Here is screenshot of what I did for your reference:
https://www.marioneisenmann.net/wp-content/uploads/2015/09/Contact-7-Custom-Code.png

Thank you for your support,
Christine ??

https://www.ads-software.com/plugins/contact-form-7/