<code>[x, y, w, h]</code>:
                <div class="columns">
                    <div class="layoutItem" v-for="item in layout">
                        <b>{{item.i}}</b>: [{{item.x}}, {{item.y}}, {{item.w}}, {{item.h}}]
                    </div>
                </div>
            </div>
        </div>
        <div id="content">
            <!--<button @click="decreaseWidth">Decrease Width</button>
            <button @click="increaseWidth">Increase Width</button>
            <button @click="addItem">A