Having trouble updating Website Media Query as desktop version across all platforms/devices in .css

Question

Hi all,
thank you for taking the time to read this.
I've been wondering how to update my website to view as a desktop version across al platforms... I am super new at this but have been having great success thanks to everyone in this forum.  I've been making updates to the site and want to keep a desktop version across all platforms...below is what i get when i view it from my phone and would like to see it as a regular pc. Thanks all!
here is the current .css and link to my site http://www.mauiandsonsretail.com
/*  Boxed Layout
    .bg-cover {
        background-attachment: fixed;
        background-position: 50% 50%;
        background-size: cover;
        background-repeat: no-repeat;
    body {
  background: url(../images/content/bg_img01.jpg);
  font-family: "Century Gothic", "Arial Narrow", Century, Cambria;
  color: #000000;
  font-size: 12pt;
  font-weight: 100;
  line-height: 1.4;
    #body-wrapper {
  left: 50%;
  margin-left: -500px;
  padding-top: 0;
  padding-bottom: 0;
  width: 980px;
  -webkit-box-shadow: 0 0 4px rgba(0,0,0,.3);
  box-shadow: 0 0 4px rgba(0,0,0,.3);
  overflow-x: hidden;
  padding-left: 25px;
  padding-right: 25px;
/*  Media Queries
/* Standard 960 or larger (browsers) */
@media only screen and (min-width: 960px) {
/* Smaller than standard 960 (devices and browsers) */
@media only screen and (max-width: 979px) {
    #body-wrapper {
        margin-left: -404px;
        width: 960px;
        padding: 0 50px;
    .fullwidth {
        margin-right: -50px !important;
        margin-left: 0px !important;
    .fullwidth-padding {
        margin-right: -50px !important;
        margin-left: -50px !important;
        padding-right: 50px !important;
        padding-left: 50px !important;
/* Tablet Portrait size to standard 960 (devices and browsers) */
@media only screen and (min-width: 768px) and (max-width: 959px) {
/* All Mobile Sizes (devices and browser) */
@media only screen and (max-width: 767px) {
    #body-wrapper {
        margin-left: -250px;
        width: 440px;
        padding: 0 30px;
    .fullwidth {
        margin-right: -30px !important;
        margin-left: -30px !important;
    .fullwidth-padding {
        margin-right: -30px !important;
        margin-left: -30px !important;
        padding-right: 30px !important;
        padding-left: 30px !important;
/* Mobile Landscape Size to Tablet Portrait (devices and browsers) */
@media only screen and (min-width: 480px) and (max-width: 767px) {
/* Mobile Portrait Size to Mobile Landscape Size (devices and browsers) */
@media only screen and (max-width: 479px) {
    #body-wrapper {
        margin-left: -165px;
        width: 280px;
        padding: 0 25px;
    .fullwidth {
        margin-right: -25px !important;
        margin-left: -25px !important;
    .fullwidth-padding {
        margin-right: -25px !important;
        margin-left: -25px !important;
        padding-right: 25px !important;
        padding-left: 25px !important;

Answer 1

Before you touch one more thing in this site, you need to get up to speed on Responsive Web Design and all that it entails.  That is the bleeding edge trend right now.  Reverting to pixel layouts is not going to improve your site.  It will throw it back into the stone age.  So don't do it.
Responsive Web Design
http://coding.smashingmagazine.com/2011/01/12/guidelines-for-responsive-web-design/
Introduction to CSS Media Queries
http://www.adobe.com/devnet/dreamweaver/articles/introducing-media-queries.html
Responsive web sites need responsive menu systems.  Below are some links to follow:
PVII's Pop-Menu Magic3 (commercial DW extension)
http://www.projectseven.com/products/menusystems/pmm3/index.htm
Responsive Iconic
http://www.dynamicdrive.com/style/csslibrary/item/responsive_iconic_menu/
Responsive Hybrid
http://www.dynamicdrive.com/dynamicindex1/responsivehybridmenu/index.html
jQuery Superfish (desktop)
http://users.tpg.com.au/j_birch/plugins/superfish/
jQuery MeanMenu (responsive on mobile)
http://www.meanthemes.com/plugins/meanmenu/
Good luck!
Nancy O.