To customize forms in the EmbedForms platform, you can use the Custom CSS field in the General Settings of your form.
How to apply custom CSS?
Open your form, and in the Create section select General Settings on the left.
Scroll down and you'll see the Custom CSS white box where you can insert the codes:
Once you insert the codes, make sure you click on Apply to see how the changes are applied, and at the end click on Save at the right top corner to save the changes.
If you need any further help with Custom CSS feel free to chat with us via Intercom or send us an email to: firstname.lastname@example.org