<a href=#MyTiddler rel="noopener noreferrer" ><div style="text-align:center;">Click here <br> to open <br> Your Tiddler</div> </a><a href=#MyTiddler rel="noopener noreferrer" ><div style="text-align:center; border: 3px solid; ">Click here <br> to open <br> Your Tiddler</div> </a>
<a href=#AnotherTiddler rel="noopener noreferrer" ><div style="text-align:center;; border: 3px solid;">Click here <br> to open <br> Another Tiddler</div> </a><a hred=#MyTiddler>
This is curious behavior but for links between tiddlers we tend to use wiki links and not html links. In your code I see the odd thing that could be influencing this like no quotes around =#tiddlername an ;; in a style.
But finding little oddities can be put to use later.
It why not use standard links to tiddlers in the current wiki?
tiddler name [[tiddler name]] [[short|tiddler name]] or the link widget etc...
Regards
Tony
actually I was following this doc : https://tiddlywiki.com/#HTML%20Links%20in%20WikiText .