[Solved] Get css class list from style tag

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Below code helped me getting my requirement.   

  var resultarray = [];
        var a = $('#pageStyleCss').html();
        if (a != undefined) {
            while (a.indexOf('{') != -1) {
                resultarray.push(a.substring(0, a.indexOf('{')));
                a = a.substring(a.indexOf('}') + 1);
            }
        }
        var i, option = "<option value=""></option>"
        for (i = 0; i < resultarray.length; ++i) {
            if (resultarray[i].indexOf('.') > -1) {
                option += '<option value="' + resultarray[i].trim().replace('.', '') + '">' + resultarray[i].trim().replace('.', '') + '</option>';
            }
        }

solved Get css class list from style tag