Sindebar Width

Hi everyone, I want to change my right sidebar width. I don’t know How to do that. Pls help me out.

My Blog = http://www.virtualtweak.com

My sidebar Style.css

Don’t know which one to change ..

#sidebar {

margin-top: 0px;
margin-right: 5px;
margin-bottom: 10px;
margin-left: 5px;
background-color: #2E3233;
padding:5px;
color:#dddddd;
border: 1px solid #3e4243;
}

#sidebar h2 {
font-weight: bold;
text-transform: uppercase;
color: #dddddd;
font-size: 110%;
border-bottom-width: 1px;
border-bottom-style: solid;
border-bottom-color: #555;
margin-bottom: 10px;
}
#sidebar p{
margin: 7px;
color:#999999;
line-height: 1.4em;
}
#sidebar a, #sidebar a:visited {
color:#ffa200;
text-decoration:none;
}
#sidebar a:hover {
color:#ffa200;
text-decoration:underline;
}

#sidebar ul li {
list-style-type: none;
list-style-image: url(‘none’);
margin-bottom: 15px;
margin-left: 10px
}

#sidebar ul p, #sidebar ul select {
margin: 5px 0 8px;
}

#sidebar ul ul, #sidebar ul ol {
margin: 5px 0 0 10px;
}

#sidebar ul ul ul, #sidebar ul ol {
margin: 0 0 0 10px;
}

ol li, #sidebar ul ol li {
list-style: decimal outside;
}

#sidebar ul ul li, #sidebar ul ol li {
margin-top: 3px;
margin-right: 0em;
margin-bottom: 0em;
margin-left: 0.5em;
padding-top: 0.1em;
padding-right: 0;
padding-bottom: 0.1em;
padding-left: 0;
list-style-type: none;
list-style-position: outside;
list-style-image: url(‘images/bull.gif’);
}