MVC4 Editor Template TextBoxFor Width CSS Not Working?

I'm now using TextBoxFor instead of EditorFor so I can at least simplify the CSS.
I really want to set the CSS in the style sheet.
I'm beginning to wonder if Editor Templates are still a bit buggy...

This works locally!
   @Html.TextBoxFor(x => x.Amount, new { style="width:75px" })

This does NOT work using style sheet!
  @Html.TextBoxFor(x => x.Amount, null, "Amount" )
  @Html.TextBoxFor(x => x.Amount, new { @class = "amount" })

[Style Sheet]
 #Amount
    {
        width: 75px
    }

    .amount
    {
        width: 75px
    }