t-header-function-arg-name">element</span><span class="qm-api-javascript-header-function-arg-type"><span class="qm-api-type">HTMLElement</span></span></span></span></span><span class="qm-api-header-tags"></span></div></div></div></div><div class="qm-api-collapsible-content"><div class="qm-api-item-content"><div class="qm-api-description"><div class="qm-html-paragraph">A function for rendering the top left cell (the division between row headers and column headers) </div><div class="qm-html-paragraph">By defa