Sub-category menu on mobile 2 columns

[Albatrosss]

Hi. On mobile, I want to show the sub-categories menu on the product page in 2 columns. But when I edit the file, there are 2 lines both on the mobile and on the desktop. How can I solve my problem?

public_html/themes/x/modules/ps_categorytree/views/templates/hook/ps_categorytree.tpl

{function name="categories" nodes=[] depth=0}
{strip}
{if $nodes|count}

<ul class="category-sub-menu">
{foreach from=$nodes item=node}
{assign var=category_products value=Module::getInstanceByName('ps_categorytree')->getProducts($node.id)}
<li data-depth="{$depth}" >
{if $depth===0}
<a href="{$node.link}">{$node.name} ({count($category_products)})</a>

{if $node.children}
<div class="navbar-toggler collapse-icons" data-toggle="collapse" data-target="#exCollapsingNavbar{$node.id}">
<i class="material-icons add">&#xE315;</i>
<i class="material-icons remove">&#xE313;</i>
</div>
<div class="collapse" id="exCollapsingNavbar{$node.id}">
{categories nodes=$node.children depth=$depth+1}
</div>
{/if}
{else}
<a class="category-sub-link" href="{$node.link}">{$node.name} ({count($category_products)}) </a>

{if $node.children}
<span class="arrows" data-toggle="collapse" data-target="#exCollapsingNavbar{$node.id}">
<i class="material-icons arrow-right">&#xE315;</i>
<i class="material-icons arrow-down">&#xE313;</i>
</span>
<div class="collapse" id="exCollapsingNavbar{$node.id}">
{categories nodes=$node.children depth=$depth+1}
</div>
{/if}
{/if}
</li>
{/foreach}
</ul>
{/if}
{/strip}
{/function}

{assign var=category_products_dva value=Module::getInstanceByName('ps_categorytree')->getProducts($categories.id)}

<div class="block-categories">
<ul class="category-top-menu">
<li><a class="text-uppercase h6″ href="{$categories.link nofilter}">{$categories.name} ({count($category_products_dva)})</a></li>
<li>{categories nodes=$categories.children}</li>
</ul>
</div>

I changed 8th the row:

<li data-depth="{$depth}" class="col-xs-6 col-md-2 col-lg-2">

It works the way I want on mobile, but it must be the same on the desktop.