how do change inline style opacity on ajax success return call What i did was $( this ).parents( " .ddlparent" ).find( ' .prgTickMark' ).css( " opacity" , " 1" ); but it did not work

Please refer below code I have a button & on button click event their is a AJAX call & please check how to change opacity using class. Usefull line (please replace below line with => $(this).parents(".ddlparent").find('.prgTickMark').css("opacity", "1"); ) $("[ class = 'glyphicon glyphicon-ok' ]").css('opacity', '1'); Sample Code Here "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js" > $(document).ready( function (){ $( "button" ).click( function (){ $.ajax({url: "demo_test.txt" , success: function (result){ $( "[class='glyphicon glyphicon-ok']" ).css( 'opacity' , '1' ); }}); }); }); class = "prgTickMark" > 'subchk-281' style= "opacity:0;position:relative;left:3px;color:#37589d;font-size:18px" class = "glyphicon glyphicon-ok" >Show Text Here Get External Content