чанк tplsliderItem

     <div class="carousel-item [[+idx:is=`1`:then=`active`]]"> <img src="[[+slide]]" class="d-block w-100" alt="...">


    <div class="carousel-caption d-none d-md-block">
        <h3>[[+zagolovok]]</h3>
        <p>[[+opisanie]]</p>
    </div>
</div>