Divi by ElegantThemes is a great multipurpose theme. Without some tweaks and customization, you can make your desirable website in a few moments using Divi.
If you have used the Accordion module in Divi, the first accordion is always open by default. To keep it close by default you can use a small JavaScript snippet. There is no need for an extra free or paid plugin.
To do so, add the following JavaScript/jQuery codes via Divi > Theme Options > Integrations > Add code the the <head> of your blog
<script>
jQuery(function($) {
$('.et_pb_accordion .et_pb_toggle_open').addClass('et_pb_toggle_close').removeClass('et_pb_toggle_open');
$('.et_pb_accordion .et_pb_toggle').click(function() {
$this = $(this);
setTimeout(function() {
$this.closest('.et_pb_accordion').removeClass('et_pb_accordion_toggling');
}, 700);
});
});
</script>