Need to resize widget to fit in smaller sidebar

Hey guys,

I am going to switch a couple of my websites to the Iconic One theme and need to alter a few things.

The first thing I changed (in my child theme) was the size of the content area to enable it to display 728×90 adsense banners properly.

.site-content {
   width: 71%;
}

Now I have an issue with my widgets being too wide and being located at the bottom of my page. I tried to change the widget size with

.widget {
   width: 25%;
}

I notice the size of the widgets has changed, but they are still located at the bottom of the page. What’s the solution?
url is lovethescale.com