» In HTML tag attribute values, you use data tags without
angle brackets. Elsewhere, use them with angle brackets and the closing /
» New Blogger uses single quotes for attribute values, and
double quotes within, so best change your code as necessary
» If you include data tags in HTML tag attribute values,
you must insert an "expr:" - i.e. change e.g. href="stuff" to expr:href='stuff'
» This is the case for data tags used in any attribute
values, not just href. I've seen expr:title, expr:id, expr:onClick and so on.
» Change the old template tags to data tags
» Within the attribute value, if there are extra single or
double quotes as part of the original code, e.g. Javascript, you need to escape
them.