Untitled

 <div class={listClass}>
                <template for:each={contents} for:item="content" for:index="index">
                    <a class="tile" data-id={content.Id} data-topic-id={content.Topic__c} key={content.Id}
                        data-order={index} tabindex={index}>
                        <lightning-icon icon-name="utility:drag_and_drop" size="x-small" class="slds-m-around_xx-small">
                        </lightning-icon>
                        {content.Topic__r.Name}
                    </a>

                </template>
            </div>