MediaWiki:Common.css

/* CSS placed here will be applied to all skins */
#mw-panel {
    background-color: #FFE5BF;
    border: solid #874E00 1px;
    padding-bottom: 15px;
}
.mw-body {
    background-color: #FFE5BF;
    border: solid #874E00 1px;
}