[Theme: Evolve] Content boxes side-to-side with right sidebar

Hi there

Im struggling with this problem:

I want to put my content boxes side-to-side with the right sidebar but the sidebar keeps pushed down to the bottom of the content boxes.

After inspecting the elements I found this:

<div id=”content”> with a total width of 1170px. But if I change:

#content {
width: 50%;
}

The whole elements are resized including the sidebar.

I already managed to control the width of the content boxes but I think the remaining extra space is pushing the sidebar down.

.home-content-boxes {
width: 65%;
clear: both;
margin: 0 0 25px;
float: left;
}

Can you lend me a hand on this?

Thank you