1.First create a shape with a particular colour lets say blue
2.Next create button that will act like a trigger, but its fake and place it on the shape you earlier created
3.Next select the text box and rename the the content to match your topic
4.Group the button and the text and Position them well on the first shape you coloured blue
5.Now here come the magic. Create a new button and do the following under styling;
Fill the buttont space with the information you will like reveal during mouse hover.
On click select do nothing
Txt color- transparent,
Fill - transparent
Content - none
Uncheck Border, Shadow and Rounding.
background colour - choose the same colour on the first shape you created
And the text color - choose white
Use the same settings as in mouse hover
ANIMATE - uncheck
6.Finally place this button right on top of the shape, text and button you created earlier. Make sure the borders does not exceed the borders of the shape. Viola test it in your browser and see the effects. check the video tutorial link https://www.dropbox.com/s/tagfuqxo4of2isa/Mouse%20hover%20effect.mov?dl=0