changing width on my website (template)

[~>Dg<~]

ive just updated my new theme and wanting to make the width smaller of the forums so not full screen

i tried editing the common.css width value but after a refresh of the style its still same width any help please

http://dgeesiogaming.co.uk/

 

[~>Dg<~]

cheers

#wrap {
min-width: 650px;
margin: 0 auto;
background: #0D0D0D;
border-color: #800000;
border-style: solid;
border-width: 0 1px 1px;
margin: 0 auto 2px;
width: 98%;


so before i was changing just the top value . do i need to adjust min - width and the bottom width percentage one ?