WebPlus Essentials User Guide - Serif

Creating variant source images
Adding Hyperlinks and Interactivity 231
For each object with at least one activated rollover state, you'll need to provide a
source image. It's the often subtle differences between the Normal image and the
"variants" that make the object appear to switch from one state to another. For
example, if you've checked the "Over" state for an object, you need to include a
variant image that the web page can display when the button is moused over. If
you want the button's text to change from black to yellow, then the "Over" state
will need an image with yellow text.
Adding popup rollovers
The most common use for popup rollovers in WebPlus is to hover over a picture
thumbnail to show its larger representation, usually offset next to the thumbnail.
The feature is simple to use and works in a similar way to the more advanced
Photo Gallery. Popup rollovers have only two states (normal and hover over)
and show the same or a different image made larger in the hover over state;
compare this with WebPlus rollovers which have up to four states and only work
with identically sized different "variant" images.
WebPlus lets you choose the position and size of the popup in relation to the
"hovered over" thumbnail; even the thumbnail can be selected and resized at any
time.