BootstrapAdmin/Bootstrap.Admin/Content/css/fix.css

html, body {
    height: 100%;
    overflow: hidden;
}

#main-content {
    margin-top: 0;
    position: fixed;
    left: 0;
    bottom: 40px;
    right: 0;
    top: 94px;
    overflow: auto;
}

.site-footer {
    position: fixed;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: 50;
    height: 40px;
}