<f:layout name="Backend/Alert" />

<f:section name="content">
    <div>
        <div class="alert alert-info">
            <f:translate key="LLL:EXT:ke_search/Resources/Private/Language/locallang_mod.xml:select_a_page">
                Please select a page!
            </f:translate>
        </div>
    </div>

</f:section>