{namespace drk=Drk\Template\ViewHelpers}
<div xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers"
      f:schemaLocation="https://fluidtypo3.org/schemas/fluid-master.xsd"
      xmlns:drk="Drk\Template\ViewHelpers"
      data-namespace-typo3-fluid="true">

    <div class="frame o-cms-content" id="c{data.uid}">
        <div class="o-cms-content__body">
            <div class="c-tabs">
                <ul class="c-tabs__nav   tabs" data-tab>
                    <f:for each="{children_10000}" as="tab" iteration="tab_iteration">
                        <li id="c{tab.uid}" class="c-tabs__item   tab-title {f:if(condition:'{tab_iteration.isFirst}', then:' is-active')}">
                            <a href="#tab-content-{tab.uid}" class="c-tabs__link">
                                {tab.header}
                            </a>
                        </li>
                    </f:for>
                </ul>

                <div class="c-tabs__content   tabs-content">
                    <f:for each="{children_10000}" as="tabContent" iteration="tab_content_iteration">
                        <div class="c-tabs__content-block   content {f:if(condition:'{tab_content_iteration.isFirst}', then:'  is-active')}" id="tab-content-{tabContent.uid}">
                            <f:for each="{children_10000}" as="record">
                                <f:format.raw>{record.renderedContent}</f:format.raw>
                            </f:for>
                        </div>
                    </f:for>
                </div>
            </div>
        </div>
    </div>
</div>