<div class="my_class" data-index=0></div>
<div class="my_class" data-index=1></div>
<div class="my_class" data-index=2></div>
<div class="my_class" data-index=3></div>
<div class="my_class" data-index=4></div>
How to change the css properties of a div having class my_class
and the data-index=0
using jquery.