{% set widths = ['20%', '40%', '55%', '70%', '60%', '80%'] %}

<div class="shimmer mt-3">
    <div class="shimmer__row shimmer__header">
        {% for i in range(4) %}
        <div class="shimmer__cell">
            <div class="shimmer__block" style="width:{{ widths|random }};"></div>
        </div>
        {% endfor %}
    </div>

    <!-- Body rows -->
    {% for i in range(10) %}
    <div class="shimmer__row">
        {% for i in range(4) %}
        <div class="shimmer__cell">
            <div class="shimmer__block" style="width:{{ widths|random }};"></div>
        </div>
        {% endfor %}
    </div>
    {% endfor %}
</div>