Hi there, can you provide us with a url to the page in question. If the one particular widget has an ID then you could use css to affect that sole widget rather than all of the widgets.

You can also add additional content to the home page using the visual composer plugin.

When you go to edit the homepage, click on the visual composer options, add a row, then add in a text box or whatever other elements you require. Screenshot – http://screencast.com/t/uNZ3YsqzxUUb