How do I add custom code to my form?

One of customization feature is the injection of custom code within your forms.

There's no limit on what you can do with your own CSS and your own scripts.

You can add an analytics script or even a live chat on your form page.

To add custom code:

1. Log into OpnForm and enter your form's editor:

2. Click on "Settings" from the top left of the page then Select "Custom Code" on the left side.

3. Add your code in the box and save your changes.

Here's a first example you can use to center your logo on a form page:

undefined <style>img.w-20.h-20.absolute.left-5.top-5 { left: 50% !important; transform: translateX(-50%); } </style>

Here’s another example to increase the size of the text input field.

undefined<style> textarea{  height:120px; } </style>

Here’s another example to change the page background color:

undefined <style>#app, nav.bg-white { background-color: blue !important; } </style>

Here's another more advanced code sample that can be used to customize the appearance of the form, by applying new CSS rules:

undefined<style> body h1, body p, body input, body label { font-family: Lato, sans-serif !important; } label.font-bold { font-weight: 500! important; } .rounded-lg { border-radius: 4px !important; } .relative.mb-3 { margin-top: 30px; } .shadow-sm { box-shadow: none !important; } .border { border-color: #b8bdc9 !important; } </style>

Updated on: 25/07/2025