WPMU DEV on "Make 3rd widget area fill the rest of the footer"

Hi @robertscori,

Without the site link i can not provide you exact solution by developing CSS code but i want to give you a hit that increase width of footer widgets to fill up the blank space.

For Example :

In case of default Twenty Fourteen theme, to increase width of footer widgets you can use the following CSS code.

#footer-sidebar .widget {
width: 300px;
}

Best Regards,