maxthecreator,
уберите hide и show сделайте class
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.active{
background-color: #F0E68C;
}
.products.active{
display: flex;
}
.products{
display: none;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
(function($){
jQuery.fn.lightTabs = function(options){
var createTabs = function(){
var tabs = this,
showPage = function(i){
blocks.removeClass("active")
.eq(i).addClass("active");
li.removeClass("active")
.eq(i).addClass("active");
},
li = $(">ul li", tabs).each(function(index, element){$(element).click(showPage.bind(null,index))}) ,
blocks = $(">.products", tabs);
showPage(0);
};
return this.each(createTabs);
};
})(jQuery);
$(document).ready(function(){
$(".products__content").lightTabs();
});
</script>
</head>
<body>
<div class="products__content">
<!--<div class="products-type">-->
<ul class="products-type__list">
<li class="products-type__list-item">
<!--<a href="" class="products-type__list-link">Бетон</a>-->
Бетон
</li>
<li class="products-type__list-item">
<!--<a href="" class="products-type__list-ink">Растворы</a>--> Растворы
</li>
</ul>
<!--</div>-->
<!-- Бетон -->
<div class="products main-page__products-list products-carousel">
<div class="card card_hover product-card main-page__product-card">
<div class="product-title">
<p class="product-name">Бетон</p>
<p class="product-code">
<span class="product-code_bold">М300</span> (B‑20)
</p>
</div>
<p class="product-card__text">Несущие стены, плиты перекрытий, балки, колонны, фундаменты</p>
<div class="product-card__price-wrapper">
<p class="price product-card__price">От<br><span class="price__value">2750</span> руб./ м3</p>
</div>
<div class="product-card__enter">
<a href="product.html">
<img src="images/icons/jump.svg" alt="">
</a>
</div>
</div>
</div>
<!-- Растворы -->
<div class="products main-page__products-list owl-carousel products-carousel" >
<div class="card card_hover product-card main-page__product-card">
<div class="product-title">
<p class="product-name">Раствор</p>
<p class="product-code">
<span class="product-code_bold">М300</span> (B‑20)
</p>
</div>
<p class="product-card__text">cxszcxНесущие стены, плиты перекрытий, балки, колонны, фундаменты</p>
<div class="product-card__price-wrapper">
<p class="price product-card__price">От<br><span class="price__value">2750</span> руб./ м3</p>
</div>
<div class="product-card__enter">
<a href="product.html">
<img src="images/icons/jump.svg" alt="">
</a>
</div>
</div>
</div>
<a href="catalog.html" class="btn btn_dark products__btn">Смотреть каталог</a>
<div class="slider-arrows products__slider-arrows">
<div class="slider-btn slider-btn_prev"></div>
<div class="slider-btn slider-btn_next"></div>
</div>
</div>
</body>
</html>