MyBB Community Forums

Remove the below classes from global.css and copy this code in your global.css

#logo {
    border-bottom: 1px solid #263c30;
    padding: 10px 0;
}
#container {
    color: #333333;
    font-family: Tahoma,Verdana,Arial,sans-serif;
    font-size: 13px;
    line-height: 1.4;
    margin: 0;
    min-width: 990px;
    text-align: left;
}
#content {
    overflow: hidden;
    padding: 20px 10px;
    width: auto !important;
}
body {
    background-image: url("http://i.imgur.com/FaNggFs.jpg");
    color: #333333;
    font-family: Tahoma,Verdana,Arial,sans-serif;
    font-size: 13px;
    line-height: 1.4;
    margin: 0;
    overflow-y: scroll;
    text-align: center;
}

It will work fine. Let me know if any issue is there

Regards
WallBB, MyBB theme designs