
Just as the calendar icon. Default in Joomla. Is not visible in the template. The popup calendar is not to see properly. Can you please help?

I'll send you about privately a link!
Thank you Ilona
.calendar td.button {
display: table-cell;
float: none;
}
gkContent, #gkPageContent{z-index: 100;}
.tooltip{z-index: 100;}
<script type="text/javascript">(function($) {$(document).ready(function() {
$('.icon-calendar').each(function(){
$(this).addClass('fa').addClass('fa-calendar');
});
});})(jQuery)</script>