           
                    <div class="control-item">
                        <label>flex-grow</label>
                        <input type="number" id="flexGrow" value="0" min="0" max="5" step="1" onchange="updateItemStyles()">
                    </div>
                    
                    <div class="control-item">
                        <label>flex-shrink</label>
                        <input type="number" id="flexShrink" value="1" min="0" max="5" step="1" onchange="updateItemStyles()">
      