mishapsv

$('select').on('change', function () {
    $(this).trigger('blur');
});

// Добавление/удаление полей загрузки файлов
$(document).on('click', '.form__input-add', function(){

		$('<div class="frm__lne form__line--input"><input class="form__input form__input--file" name="attach" type="file" id="attach-field"><a href="#" class="form__input-del">Удалить</a><a href="#" class="form__input-add">Добавить еще</a>').insertAfter('.form__line--input:last');
		$('input[type=file].form__input--file').each(function(){
			$(this).styler();
		});
		$('.form__input-add').each(function(i, item){
			if($('.form__input-add').length > 1){
				$(item).remove();
			}
		});
        return false;        
    });

	$(document).on('click', '.form__input-del',function () {
		if ($('.form__line--input').length == 1) {
			return false
		}
		$(this).parents('.form__line--input').remove();
		if(!$('.form__input-add').length){
			$('<a href="#" class="form__input-add">Добавить еще</a>').insertAfter('.form__input-del:last');
		}

		return false;
	});

<div class="menu">
	<div class="menu-item">...</div>
	<div class="menu-item">...</div>
	<div class="menu-item">...</div>
	<div class="menu-item">...</div>
	<div class="menu-item">...</div>
</div>

.menu {
	display: flex;
	justify-content: space-between;
}
.menu-item {
	flex-basis: 15%;
}

.menu {
	display: flex;
	justify-content: space-between;
}
.menu-item:nth-child(n + 2) {
	margin-left: 30px;
}

.menu {
	text-align: justify;
	text-justify: newspaper;
	font-size: 0;
}
.menu:after {
	content: "";
	display: inline-block;
	width: 100%;
}
.menu-item {
	display: inline-block;
	width: 15%;
	font-size: 1rem;
}

for (var i = 0; i < title.length; i++) { 
  (function(i){
    title[i].addEventListener('click', function (event) {
      event.preventDefault();
      text[i].classList.toggle('main_item--open');
    });
  })(i);
}

function isChild(child, parent) {              
                var current=child;    
                if(!child||!parent)return false;
                if(child===parent)return true;
                
                while (current = current.parentNode) {
                    if(current==parent)return true;
                }
                
                return false;
            }

...
 
if(!isChild(event.target, popupElement)){
   popup.close();
}