Question: I need to place help text below labels and finding it tricky getting the CSS correct for it.

I have created the jsfiddle below as an example.

The requirements are:

1. The label is left aligned
2. The help text is shown directly below it
3. The input and select controls appear on the same line

<http://jsfiddle.net/brendan_rice/paSR2/2/>

Can anyone help please?

Answer: 
I don't know where you have changed Your product name. As per my knowledge you have to change the value of key 'Bundle name' in '<>-Info.plist' file.
I couldn't find any specific rules about the character set allowed in the Product Name, but I would keep it in ASCII just to be safe, and perform any customizations to the name using Bundle Display Name (and/or Bundle Name) in your Info.plist file. This would let you have a different application name for different user languages (I'm assuming you want localized app name(s)).

As to what is actually causing your app to crash, it could be that bundle paths are mangled because you have non-ASCII characters in the product name, but I don't have proof of that. Try the suggestion above and see if it works for you.