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we can navigating the elements by using the "Tab" button on your keyboard.
See below code if you written this in your html page then press the tab button,
it will go at w3schools first because we used tabindex = 1,
then if we press tab again it goes to Microsoft because we used tabindex = 2,
then if we press tab again it goes to Google because we used tabindex = 3.
<div tabindex="1">W3Schools</div><br>
<div tabindex="3">Google</div><br>
<div tabindex="2">Microsoft</div>