Where to change in CSS WP theme width?

If you check my link: www.animeenglishsub.com you will se what i mean. I want to change the width of post column.

 

on your css find post-wrapper and change its width

 

I found only this:

/* Wrapper */

#wrapper a:link { font-weight: bold; }

#wrapper a:visited { font-weight: bold; }

#wrapper a:hover, #wrapper a:active { }

/* Content */

#content .post-title a { border-bottom-width: 0; }

#content .post p.img { float: left; margin: 0 15px 0 0; }

#content .post p.img img { padding: 8px; border: 1px solid #d0d0d0; background-color: #eeeeee; }

#content .post-footer
{
font-size: 90%;
color: #888888;
margin-bottom: 5px;
padding:5px 5px 5px 15px;
background-repeat: none;
background: #1A1A1A;
border: 1px solid #323232;
}

 

in style.css change these lines/ values