The style of your contact forms, if you’re not using a set website template and 10Web builder, depends on the theme you’re using. If you go to Form Maker –> Forms and select the form you want to change the appearance of.
Click Appearance and you’ll see the theme you’re currently using. You can then change to a different themes by selecting it from the drop down menu and then Update. If you want to customize the theme yourself, click Edit Theme.
You can then go through all the tabs and change the parameters you want, such as font sizes, background colors, margins, borders, etc. of header, content, input box, buttons, etc.
Click Save when you’re done and your theme will be updated.