<ul class="btn-group" role="group">
    <li class="btn-group-item"><button class="btn btn-tertiary dark" id="button_611408702" type="button">
            <span class="btn-content">Gauche</span>
        </button></li>
    <li class="btn-group-item"><button class="btn btn-tertiary dark" id="button_929913014" type="button">
            <span class="btn-content">Milieu</span>
        </button></li>
    <li class="btn-group-item"><button class="btn btn-tertiary dark" id="button_244170105" type="button">
            <span class="btn-content">Droite</span>
        </button></li>
</ul>