First, you will need to allow iFrame on you Joomla website:
On Extensions menu click on Plug-in Manager.
Find and click on Editors – TinyMCE (or any other editor in use), Click on Basic Options on right.
On Prohibited Elements section remove mentioning of “script” and “iframe”. Click Save.
Joomla 2.5, 3.1: Click on Site menu, select Global Configuration, click on Text Filters.
Joomla 1.7: Click on Content menu, select Article Manager, click on Options on the top right corner and click on Text Filters tab.
Under Super Users section select No Filtering.
Copy the Scheduling widget HTML code:
Go to Add to Website menu on your vCita dashboard and select Edit next to the Scheduling option to customize and design your widget.
Click Add To Website button and select Other websites
Copy the HTML code
Add the Scheduling widget Code to your site as part of your article or with Custom html.