Gravity Form Styling

Need help styling gravity forms in Wordpress.
I have created 6 different gravity forms, 4 fields are the same with 2 additional different fields for each form. The form needs to be a maximum of 4 rows plus submit button.
No label to show above field but placeholder to show.
The website is build with Wordpress and Elementor pro plugin.
Form has a mixture of fields, check boxes and drop downs.
Gravity forms are built but they need styling to fit a particular area of the website.