.about
.about___box.about__box_advantage
.advantage
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<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick-theme.min.css"/>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick.min.css"/>
Вот тут почитайте https://web-revenue.ru/modx-revo/vyivod-sosednih-d...