[Floris]

<div class = "tborder" style="overflow:auto; border-top-width:0px;" width="100%;">
and remove the ";"

The ; is optional, and doens't fix an issue, it's non exist.

It works with and without the last ;

style="this:that"
or
style="this:that;"

the ; is there by default, and without it, is just more short hand.

the ; must actually be there, if you add more ..

style="this:that; anotherne;"
is the same as
style="this:that; anotherne"

Just saying

It doesn't cause bugs, nor fix them.