Validating a page which contain Google Maps Pro
I am having a few problems validating a page which contains Google Maps Pro.
Which Doctype am I supposed to be using for this page?
The first issue relates to the balloon created on the map. The address is within a Span, however validation says that it is not
end tag for element "SPAN" which is not open 
<span style="font: 12px Verdana, Arial, Helvetica, sans-serif; color: black;">2a Cricket Hill<br>Finchampstead<br>Berkshire<br>RG40 3TN</span>
The next 4 errors relate to the Google api key.....
general entity "v" not defined and no default entity reference to entity "v" for which no system identifier could be generated general entity "key" not defined and no default entity reference to entity "key" for which no system identifier could be generated
Each time different parts of the api key are highlighted
there are more, but I wont go on just yet.
