为什么在aspx页面中使用引导时站点呈现没有响应性?

页码: http://ecommerce.instituteforsupplymanagement.org/confreg/default.aspx

一切都被塞进了一个网络表单。我通过JavaScript对象调用所有类。

    var j = document.getElementById("jval").value;
    var obj = JSON.parse(j);


    var DivCont = document.getElementById("DivCont");



    for (var i = 0; i < obj.length; i++)
    {
        var d = new Date(obj[i].StartDate);
        var sd = d.getMonth() + 1 + '-' + d.getDate() + '-' + d.getFullYear();
        var t = "";

        //alert(obj[i].ProdId)
        t += "<div class=\"row\">";
        t += "<div class='col-sm-12'>";
        t += "<div class='card no-bg no-border'>";
        t += "<div class='row'>";
        t += "<div class='col-lg-3 col-sm-12'>";

        t += "<ul class=\"list-group\">";
        t += "<li class=\"list-group-item date no-bg no-border text-uppercase\">";
        t += "<i class='fa fa-calendar'></i> Start Date: " + sd;
        t += "</li>";
        t += "<li class='list-group-item time no-bg no-border text-uppercase'>";
        t += "<i class='fa fa-clock-o'></i> Type: " + obj[i].SessionType;
        t += "</li>";
        t += "<li class='list-group-item speaker no-bg no-border text-uppercase'>";
        t += "<i class='fa fa-user'></i> Speaker: " + obj[i].LblName;
        t += "</li>";
        t += "</ul>";
        t += "</div>";
        t += "<div class='col-lg-9 col-sm-12'>";
        t += "<h4 class='card-header title-mlr-0 no-bg no-border text-black text-uppercase mt-3 mb-3'>";
        t += obj[i].SessionName;
        t += "</h4>";
        t += "<p class='card-text'>";
        t += obj[i].ShortDescr;
        t += "</p>";
        t += "</div>";

        t += "</div></div></div></div>";
        //alert(t)
        DivCont.innerHTML += t;
    }

我错过了什么?