I am willing to add some inset box-shadow to a tag that is containing a Google Maps element. However, it seems nothing happens, probably because Google loads some other div's in the original element, hence covering the generated box-shadow.

How can I achieve this effect?

Here's the code I have:

<section id="map-container">
    <figure id="map"></figure>
</section>

#map-container  {
    position: relative;
    float: right;
    width: 700px;
    background-color: #F9FAFC;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
}

#map    {
    position: relative;
    height: 400px;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    box-shadow: 0 1px 0 0 #F6F7FB inset, 0 -1px 0 0 #E0E5E1 inset, 0 -2px 0 0 #EBEBED inset, 0 -3px 0 0 #F4F4F6 inset;
}

Thank you!