Various iframe attributes can be set in the Advanced tab.
Styles
A list of inline css properties to be applied to the iframe, eg: border: 1px solid red;
Classes
Select and apply css classes from your template stylesheet. Additional class names, seperated by a space, can be typed into the field.
Title
A descriptive title for the iframe. This will show as a tooltip when the mouse cursor is placed over the iframe.
Name
Set a unique name attribute value for the iframe.
Id
Set a unique id attribute value for the iframe.
Allow Transparency
Allow for transparent content support in IE browsers
Text or HTML
Optional text or HTML to include inside the iframe.