Use the 123FormBuilder online forms to SmugMug, simply log into your 123FormBuilder account, select the online form you want to publish and access its Publish section. We offer a variety of options to choose from, such as embedding your form on a webpage or have it displayed in a lightbox (opened on click or automatically). This documentation details how to embed an online form on a SmugMug webpage with the help of its HTML code, located in the Embed Code subsection.
In 123FormBuilder, go to Publish → Embed Code and copy the Inline HTML code of your online form. In your SmugMug account, go to Customize → Customize Site and select the webpage you want to edit, in the panel on the right. Click on the Content tab and hit HTML & CSS from the list below.