 <i class="fa fa-header" aria-hidden="true"></i>3
            </button>
        </div>
        <div class="group">
            <button type="button" id="bold">
                <i class="fa fa-bold" aria-hidden="true"></i>
            </button>
            <button type="button" id="italic">
                <i class="fa fa-italic" aria-hidden="true"></i>
            </button>
        </div>
        <div class="group">
            <button type="button" id="link">
                <i class="fa fa-link" aria-hidd