#fullscreenoverlay {
    overflow: hidden;
}

#fullscreeneditor {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 50px;
    z-index: 1000;
}

#fullscreeneditor
    .ck-editor__editable.ck-rounded-corners.ck-editor__editable_inline,
#fullscreeneditor .ck.ck-editor__main {
    height: 100%;
    max-height: 100% !important;
}