Hello,
To right align the dropdown items, you can add the w3-right-align class to the anchors of the dropdown as shown below:
<div class="w3-dropdown-content w3-bar-block w3-card-4">
<a href="#" class="w3-bar-item w3-button w3-right-align">Link 1</a>
<a href="#" class="w3-bar-item w3-button w3-right-align">Link 2</a>
<a href="#" class="w3-bar-item w3-button w3-right-align">Link 3</a>
</div>
Hope this is useful
PascalZ