Customizing Registration Question Layout

Hello there,
I need some help in customizing the display of the registration fields in the My Account Details/Profile page in my ‘Dating Theme’. The registration questions I have laid out for my community members simply display in one column and on the computer/laptop do not look nice. As well, how do we create drop down sections for specific grouped questions? Purpose is to minimize the ‘mess’/ overwhelming feeling from all the questions that need to be asked.

Thank you.