Кирилл Потапенко (Все сообщения пользователя)

$curdate = date('d.m.Y');
$arrFilter = Array("<=PROPERTY_END_OF_STOCK" => $curdate)

0 => 
array (
  'CONDITION' => '#^/catalog/#',
  'RULE' => '',
  'ID' => 'bitrix:catalog',
  'PATH' => '/catalog/index.php',
  'SORT' => 100,
),

/local/templates/название_вашего_шаблона/components/bitrix/menu/top/template.php
/local/templates/.default/components/bitrix/menu/top/template.php
/local/components/bitrix/menu/top/template.php
/bitrix/templates/название_вашего_шаблона/components/bitrix/menu/top/template.php
/bitrix/templates/.default/components/bitrix/menu/top/template.php
/bitrix/components/bitrix/menu/top/template.php

Bootstrap dropdown require Popper.js (https://popper.js.org)

<?php
$assets = \Bitrix\Main\Page\Asset::getInstance();

// CSS
$assets->addCss(SITE_TEMPLATE_PATH . '/css/vendor.min.css');

// JS
$assets->addJs(SITE_TEMPLATE_PATH . '/js/vendor.min.js');

// STRING
$assets->addString("<li nk href='http://fonts.googleapis.com/css?family=PT+Sans:400&subset=cyrillic' rel='stylesheet' type='text/css'>"); 

<?php
// CSS
$this->addExternalCss("/local/styles.css"); 

// JS
$this->addExternalJS("/local/libs.js"); 

select:required:invalid {
  color: gray;
}
option[value=""][disabled] {
  display: none;
}
option {
  color: black;
}

<select required>
  <option value="" disabled selected>Select something...</option>
  <option value="1">One</option>
  <option value="2">Two</option>
</select>

background-size: auto 100%;

background-size: 100% auto;

<?=$arItem["PROPERTIES]["НАЗВАНИЕ_СВОЙСТВА"]["VALUE"]?>