I have a very simple `box-shadow` on an header:

```
h1 {
    box-shadow: 0 4px 9px -8px #000000;
    color: #D95B43;
    height: 1.2em;
    margin-top: 0;
    font-size: 1.3em;
    padding: 10px;
}

```

But the box-shadow doesn't work on Mobile Safari (iOS 7). In the previous version (and in **portrait view**, in iOS7) it works fine. 

Here's a screenshot:

![enter image description here](https://i.stack.imgur.com/JGSxB.jpg)

And a [jsfiddle](http://jsfiddle.net/hNcV3/).

How can I solve this problem?