<div class="breadcrumbs">
    <div itemprop="breadcrumb" class="breadcrumbs_inner">
        <a href="https://site.com">Главная</a>
        <span class="delimiter">/</span>
        <span class="current">О компании</span>
    </div>
</div>

<ol itemscope itemtype="http://schema.org/BreadcrumbList">
    <li itemprop="itemListElement" itemscope
        itemtype="http://schema.org/ListItem">
        <a itemprop="item" href="https://example.com/dresses">
            <span itemprop="name">Dresses</span></a>
        <meta itemprop="position" content="1" />
    </li>
    <li itemprop="itemListElement" itemscope
        itemtype="http://schema.org/ListItem">
        <a itemprop="item" href="https://example.com/dresses/real">
            <span itemprop="name">Real Dresses</span></a>
        <meta itemprop="position" content="2" />
    </li>
</ol>

<ul itemscope="" itemtype="http://schema.org/BreadcrumbList" class="breadcrumbs_inner">
    <li itemprop="itemListElement" itemscope="" itemtype="http://schema.org/ListItem">
        <a itemprop="item" href="https://site.com"><span itemprop="name">Главная</span></a>
    </li>
    <li itemprop="itemListElement" itemscope="" itemtype="http://schema.org/ListItem">
        <span itemprop="name" class="current">Новости</span>
    </li>
</ul>

BreadcrumbList 4 ОШИБКИ НЕТ ПРЕДУПРЕЖДЕНИЙ
@type    BreadcrumbList
itemListElement
@type    ListItem
name     Главная
item     Необходимо указать значение для поля item.
position Необходимо указать значение для поля position.

itemListElement
@type    ListItem
name     Новости
item     Необходимо указать значение для поля item.
position Необходимо указать значение для поля position.

<ul itemscope="" itemtype="http://schema.org/BreadcrumbList" class="breadcrumbs_inner">
    <li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
        <a itemprop="item" href="https://site.com"><span itemprop="name">Главная</span></a>
        <meta itemprop="position" content="1" />
    </li>
    <li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
        <a itemprop="item" href="https://site.com/dresses/real"><span itemprop="name" class="current">Новости</span></a>
        <meta itemprop="position" content="2" />
    </li>
</ul>

<ul itemscope="" itemtype="http://schema.org/BreadcrumbList" class="breadcrumbs_inner">
    <li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
        <a itemprop="item" href="https://site.com"><span itemprop="name">Главная</span></a>
        <meta itemprop="position" content="1" />
    </li>
    <li>
        <span class="current">Новости</span>
    </li>
</ul>