erpnext/utilities/page/todo/todo.html

<div class="layout-wrapper layout-wrapper-background">
	<div class="appframe-area"></div>
	<div class="layout-main todo-layout">
		<div>
			<div id="todo-list">
				<div class="todo-content"></div>
			</div>
		</div>
		<div style="clear: both"></div>
	</div>
</div>