#bx-panel {
    position: absolute !important;
    top: 0;
    left: 0;
    width: 100% !important;
}
#bx-panel ~ .header {
    top: 150px;
}
#bx-panel ~ main {
    padding-top: 150px;
}
#bx-panel.bx-panel-folded ~ .header {
    top: 40px;
}
#bx-panel.bx-panel-folded ~ main {
    padding-top: 40px;
}