Note: After saving, you have to bypass your browser's cache to see the changes. Internet Explorer: press Ctrl-F5, Mozilla: hold down Shift while clicking Reload (or press Ctrl-Shift-R), Opera/Konqueror: press F5, Safari: hold down Shift + Alt while clicking Reload, Chrome: hold down Shift while clicking Reload.
/* bluer background */
body .mw-page-container, body .vector-header-container .mw-header, body .vector-header-container
{
    background-color: #ddf;
}
#mw-page-base
{
    background-color: #ddf;
    background-image: -webkit-gradient(linear,left top,left bottom,color-stop(50%,#f8f8ff),color-stop(100%,#ddf));
    background-image: -webkit-linear-gradient(top,#f8f8ff 50%,#ddf 100%);
    background-image: -moz-linear-gradient(top,#f8f8ff 50%,#ddf 100%);
    background-image: linear-gradient(#f8f8ff 50%,#ddf 100%);
}

#vector-main-menu-pinned-container .vector-main-menu,
.vector-dropdown .vector-dropdown-content,
.vector-dropdown > .vector-menu-content
{
	background-color: #eef;
}

div#wikiPreview
{
   background-color: #ccf;
   background-image: -webkit-gradient(linear, 0 100%, 100% 0,
                         color-stop(0.25, rgba(255, 255, 255, 0.15)),
                         color-stop(0.25, transparent),
                         color-stop(0.5, transparent),
                         color-stop(0.5, rgba(255, 255, 255, 0.15)),
                         color-stop(0.75, rgba(255, 255, 255, 0.15)),
                         color-stop(0.75, transparent), to(transparent));
   background-image: -webkit-linear-gradient(315deg,
                         rgba(255, 255, 255, 0.15) 25%,
                         transparent 25%, transparent 50%,
                         rgba(255, 255, 255, 0.15) 50%,
                         rgba(255, 255, 255, 0.15) 75%,
                         transparent 75%, transparent);
   background-image: -moz-linear-gradient(315deg,
                         rgba(255, 255, 255, 0.15) 25%,
                         transparent 25%, transparent 50%,
                         rgba(255, 255, 255, 0.15) 50%,
                         rgba(255, 255, 255, 0.15) 75%,
                         transparent 75%, transparent);
   background-image: linear-gradient(315deg,
                         rgba(255, 255, 255, 0.15) 25%,
                         transparent 25%, transparent 50%,
                         rgba(255, 255, 255, 0.15) 50%,
                         rgba(255, 255, 255, 0.15) 75%,
                         transparent 75%, transparent);

   -webkit-background-size: 50px 50px;
      -moz-background-size: 50px 50px;
           background-size: 50px 50px;
}

pre, .mw-code
{
   background-color: #f0f0ff;
}

#mw-translate-SpecialPageTranslation-prioritylangs:after {
    content: "(WMLGBT:" " ar," " fr," " es," " ja," " pl," " ru," " sh," " tr / zh," " hi," " pt)";
    font-family: Source Sans Pro, sans-serif;
}