[ تم الحل ] ممكن مساعده فى تنفيذ هذا فى الاستايل

<div class="block block--category block--category{$node.node_id}">

<div class="block block--category block--category{$node.node_id} collapsible-nodes">

<h2 class="block-header">

<div class="block-header--left">

<xf:if is="{$node.description}"><span class="block-desc">{$node.description|raw}</span></xf:if>

</div>

 </h2>

<span id="collapse-{$node.node_id}" class="collapseTrigger collapseTrigger--block {{ !is_toggled('_node-' . $node.node_id) ? ' is-active' : '' }}" data-xf-click="toggle" data-xf-init="toggle-storage" data-storage-type="cookie" data-target=".block--category{$node.node_id} .block-body" data-storage-key="_node-{$node.node_id}"></span>

<div class="block-body">

<div class="block-body block-body--collapsible {{ !is_toggled('_node-' . $node.node_id) ? ' is-active' : '' }}">

/* Node Collapse */
.block--category
{
    .collapseTrigger
    {
        opacity: 0.5;
        transition: opacity 0.3s;
        margin-right: 10px;
        &.is-active:before
        {
            .m-faIcon(@fa-var-solid-chevron-down);
            transform: scale(-1, 1);
            margin-right: -8px;
        }
        &:before
        {
            .m-faIcon(@fa-var-solid-chevron-up);
            font-size: 80%;
        }
    }
    .block-container:hover .collapseTrigger
    {
        opacity: 1;
    }
}

.collapsible-nodes
{
        .block-header
        {
            display: flex;
        }
        .block-header--left
        {
            margin-right: auto;
            max-width: 100%;
        }
}

/* Node Collapse */
.block--category
{
    .collapseTrigger
    {
        opacity: 0.5;
        transition: opacity 0.3s;
        margin-right: 10px;
        &.is-active:before
        {
            .m-faIcon(@fa-var-solid-chevron-down);
            transform: scale(-1, 1);
            margin-right: -8px;
        }
        &:before
        {
            .m-faIcon(@fa-var-solid-chevron-up);
            font-size: 80%;
        }
    }
    .block-container:hover .collapseTrigger
    {
        opacity: 1;
    }
}

.collapsible-nodes
{
        .block-header
        {
            display: flex;
        }
        .block-header--left
        {
            text-align: center;
            width: 100%;
        }
}