href not working for nav-link collapsed class

Question

Href is not working when clicking category link. The menu is collapsed and it works for subcategories. The value is present in href but it collapses to subcategory.

<a class="nav-link collapsed" href="www.google.com" data-toggle="collapse" data-target="#id1" aria-expanded="false" aria-controls="#id1"> --category
<div class="collapse" id = "#id1">
    <a class="nav-link" href="www.fb.com"></a> --subcategory1
    <a class="nav-link" href="www.twitter.com"></a> --subcategory2
</div>  
 </a>

I don't know which if i change any class name it it will affect sub category(which is working fine).Please help.

Answer 1

Try to use the entire URL. For example https://www.twitter.com/ Also, Your first anchor tag isn't closing anywhere