this.find id code example
Example 1: find class using jquery
var myVar = $("#start").find('.myClass').val();
Example 2: how to target an element inside of a $(this) jquery
$( this ).find( 'li.target' ).css("border", "3px double red");
var myVar = $("#start").find('.myClass').val();
$( this ).find( 'li.target' ).css("border", "3px double red");