How to Inject CSS Codes to Widgets

May 19, 2025

Jotform’s Form Builder lets you inject Custom CSS Codes to style your form just the way you want. The same goes for widgets, but because widgets are embedded in their own iframes, they have a separate CSS injection option. This is due to the Same-Origin Policy, which limits interaction between content from different sources. 

Note

Custom CSS in widgets isn’t supported in Jotform Cards. Check our guide on How to Change Your Form Layout to switch to Classic form.

If you’ve added a widget to your form, like the Configurable List, and want to customize how it looks with CSS, it’s easy to do. Here’s how:

  1. In Form Builder, select your widget and on the right side of it, click on the Wand icon.
  2. Then, under the Custom CSS tab, paste in your CSS code.
  3. Now, click on Update, and you’re all set.
Customizing widget in Jotform Form Builder using Custom CSS tab

That’s it! With just a few clicks, you can style your widgets to blend seamlessly with the rest of your form’s design.

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