How to create a hover effect in a newsletter?

Question

I\'m creating a newsletter, and i want to have panels that change background-color on mouse over.
Seeing as the newsletter wont have a head, I am defining all styles inline.

Answer 1

I you are certain your css will not be removed, you can use a hover and a background-color property

.panel:hover {
    background-color: #EFEFEF;
}

Also it does not seem possible to use a pseudo-selector in an inline style, so that might be a stopper: