Custom css

Source code: Survey setup
Survey.defaultBootstrapCss.navigationButton = "btn btn-primary";
Survey.Survey.cssType = "bootstrap";
var survey = new Survey.Model({questions: [
{ type: "matrix", name: "Quality", title: "Please indicate if you agree or disagree with the following statements",
   columns: [{ value: 1, text: "Strongly Disagree" }, 
              { value: 2, text: "Disagree" }, 
              { value: 3, text: "Neutral" }, 
              { value: 4, text: "Agree" }, 
              { value: 5, text: "Strongly Agree" }],
    rows: [{ value: "affordable", text: "Product is affordable" }, 
           { value: "does what it claims", text: "Product does what it claims" },
           { value: "better then others", text: "Product is better than other products on the market" }, 
           { value: "easy to use", text: "Product is easy to use" }]}
]});
var myCss = {
        matrix: {root: "table table-striped"},
        navigationButton: "button btn-lg"   
   };


function onAngularComponentInit() {
    Survey.SurveyNG.render("surveyElement", {
        model:survey,
        css: myCss
    });
}
var HelloApp =
    ng.core
        .Component({
            selector: 'ng-app',
            template: '<div id="surveyContainer" class="survey-container contentcontainer codecontainer">' +
            '<div id="surveyElement"></div></div>'
        })
        .Class({
            constructor: function() {
            },
            ngOnInit: function() {
                onAngularComponentInit();
            }
        });
document.addEventListener('DOMContentLoaded', function() {
    ng.platformBrowserDynamic.bootstrap(HelloApp);
});



Set the css property to override the required css class(s).

Currently you may override the following css classes: