Remove bullets from a multi-select checkbox on form

When a user is presented with a multi-select checkbox field on my form each selection is preceded by a bullet for some reason; it looks terrible and is poor UI. It seems this can be removed by adding an additional line of code to the CSS - should this be done directly from the CMS or can I just add it to the embed code in Hubspot ?

I would like to understand what implications would have adding a line of code and if it’s necessary to contact the web developers.

If possible share with a screen shot. I would suggest to connect with a web developer to look up on the css.