The width attribute on Overlay is confusing (doesn't behave like other HTML width attributes)

[tosh]

In our example overlay uses a 'width' attribute to set its width but it seems to require the width to be set with 'px' postfix?

[nikgraf]

We might be able to use style/data-style attribute instead or only provide the number without 'px'

I will look into the style attribute.

more info:

• https://github.com/dart-lang/web-ui/issues/500
• http://www.dartlang.org/articles/web-ui/spec.html

data-style attributes: you can pass a Map<String, String> as a binding to a special data-style attribute. When changes to the map are detected, the actual style of the element will be updated.

Open issues: We might want to remove data-style attributes and possibly merge this feature directly in style attributes. This would be similar to how class attributes are smart to accept lists or strings.