Button changes colour
I have a block of text consisting of several lines. I then created a transparent button to place over parts of the text so that the user can select the button covering a piece of text and jump to another slide. Effectively a drop down list for the user to select an item to jump to another slide.
All works well however when the mouse pointer hovers over the transparent button, the colour changes and blocks out the text. I would like to change this colour but more importantly, I want to make it transparent so that the text can still be read behind the button, prior to the user clicking on the button. I cannot find where to change this button property to achieve this.
Thanks in advance!