How can I make my jotform background transparent?

Hola quiero saber como puedo dejar el fondo transparente de un  formulario

I see that you mean you wish to make your jotform background transparent.

Please refer to this guide here https://www.jotform.com/help/87-Making-the-Form-Background-Transparent for further information on how to do that.

Alternatively, you can also do this in our Form Designer feature by selecting the Designer Option for your form then choose background and slide the background option all the way to the left so that it turns into a checker-like pattern to override the color with a transparency.