Правки в 2.6.0

 
@media screen and (max-width: 640px)
#pm_window {
    width: 530px;
}
 

@media screen and (max-width: 800px)
#pm_window .right-panel {
    width: 100%;
    left: -700px;
    display: none;
}

 
@media screen and (max-width: 640px)
#pm_window {
    width: 530px;
}
 

 
#pm_window {
    overflow: hidden;
    min-height: 120px;
    box-sizing: border-box;
    width: 960px;
}
 

 
.nyroModalCont {
	position: absolute;
    box-shadow:0 0 30px #000;
	margin: 30px;
    padding:0;
	background: #fff;
    z-index: 101;
	box-sizing: border-box;
    max-width: calc(90% - 100px)!important;
}
 

 
#pm_window {
    overflow: hidden;
    min-height: 120px;
    box-sizing: border-box;
    width: 960px;
    max-width: 100%;
}
 

<?php if (!empty($item['comments_widget'])){ ?>
    <?php echo $item['comments_widget']; ?>

<script>
	$(document).ready(function()
	{
		$('div#comments_widget>select').change(function()
		{
			$('div#comments_widget>div.tab').hide();
			$('div#comments_widget>div' + $('div#comments_widget>select>option:selected').attr('value')).show();
		});
	});
	</script>