styles.css

section.block_zoom_scheduler #id_timestart_day,
section.block_zoom_scheduler #id_timestart_month,
section.block_zoom_scheduler #id_timestart_year,
section.block_zoom_scheduler #id_timestart_calendar.visibleifjs,
div[data-block="zoom_scheduler"] #id_timestart_day,
div[data-block="zoom_scheduler"] #id_timestart_month,
div[data-block="zoom_scheduler"] #id_timestart_year,
div[data-block="zoom_scheduler"] #id_timestart_calendar.visibleifjs {
	display:none;
}
section.block_zoom_scheduler .fdate_time_selector,
div[data-block="zoom_scheduler"] .fdate_time_selector {
	font-size: 1px;
}
section.block_zoom_scheduler #id_timestart_hour,
section.block_zoom_scheduler #id_timestart_minute,
div[data-block="zoom_scheduler"] #id_timestart_hour,
div[data-block="zoom_scheduler"] #id_timestart_minute {
	font-size: 14px;
}
section.block_zoom_scheduler .row,
section.block_zoom_scheduler .col-md-3,
section.block_zoom_scheduler .col-md-9,
div[data-block="zoom_scheduler"] .row,
div[data-block="zoom_scheduler"] .col-md-3,
div[data-block="zoom_scheduler"] .col-md-9 {
    display: block;
    max-width: 100%;
}
/*section.block_zoom_scheduler #fitem_id_duration .form-inline .form-group,
div[data-block="zoom_scheduler"] .form-inline[data-fieldtype="duration"] .form-group {
	width: 45%;
}
section.block_zoom_scheduler #fitem_id_duration .form-inline .form-group span[data-fieldtype="text"],
div[data-block="zoom_scheduler"] .form-inline[data-fieldtype="duration"] .form-group span[data-fieldtype="text"] {
	width: 100%;
}*/