Edit in JSFiddle

<div onclick="alert('Outer Div');" style="height: 200px; width: 200px; background-color: pink; padding: 10px;">
Div 1
    <div onclick="alert('Inner Div');" style="height: 140px; width: 140px; background-color: yellow; padding: 10px;">
        Div 2
    </div>
</div>