removing sidebar and centering portfolio projects

I am looking to have my content on portfolio projects be centered. I have removed all widgets from the sidebar so its not visible. However the project content is now centering itself as if the sidebar was still there.

this is the page in question

I have already added these two pieces of code to the stylesheet just to give you more info in case they may be effecting things

.post-content .entry-header img {
display: none;
}

.container {
position: center;
width: 66%;
}

I have no intention of ever using the sidebar and basically just want the portfolio projects to be plain pages.

Any fix would be greatly appreciated!

Hi,

Sorry for a late response, the page in question using a different theme, can you pass us the correct URL, so that we can assist you?

Let us know,

Thanks,
laranz.