.md-panel-outer-wrapper {
    position: fixed;
    overflow: auto;
}
.md-panel-outer-wrapper > .md-panel.scrollable-parent {
    position: relative;
    margin: 30px auto;
    top: 0 !important;
    left: 0 !important;
    transform: none !important;
}
.md-panel-outer-wrapper > .md-panel.scrollable-parent > md-content {
    overflow: hidden;
}