get a inside div jquery code example

Example 1: jquery get child div

$(this).children('div').show();

Example 2: jquery find

$( "li.item-ii" ).find( "li" ).css( "background-color", "red" );

Example 3: (this).find

$('article a').click(function() {
    $(this).parent().find('h3').slideToggle('fast');
});