{% set uuid = create('craft\\helpers\\StringHelper').UUID() %}
<div class="tabs">
<ul>
{% for i in 0..3 %}
<li><a href="#{{ ['tab', loop.index, uuid]|join('-')|id }}">Tab 1</a></li>
{% endfor %}
</ul>
{% for i in 0..3 %}
<div id="{{ ['tab', loop.index, uuid]|join('-')|id }}">
</div>
{% endfor %}
</div>