Methoden

<style type="text/css">
    #db_output{
        column-count: 2;
    }
    .db_akkordion_mobile_clicker div:first-child .container .row > div {
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.6);
        padding-bottom: 15px;
    }
    .db_akkordion_mobile_clicker .row > div {
        margin: 15px 0;
    }
    input[type=checkbox],
    input[type=radio] {
        margin: 4px 0 0;
        margin-top: 1px\9;
        line-height: normal;
    }
    input[type=checkbox], input[type=radio] {
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
        padding: 0;
    }
    .hidden {
        display: none!important;
    }
    .db_akkordion_mobile_clicker {
        max-height: 20px;
        overflow: hidden;
        transition: max-height 0.5s ease-in-out;
        position: relative;
        width: 100%;
        cursor: pointer;
    }
    .db_akkordion_mobile_clicker:after {
        top: 10px;
        margin: auto;
        color: #333;
    }
    .db_akkordion_mobile_clicker:after {
        content: "\f067";
        position: absolute;
        top: 2px;
        margin: auto;
        z-index: 9999;
        right: 0;
        opacity: 0.5;
        color: #666;
        font-family: 'FontAwesome' !important;
    }
    label {
        display: inline-block;
        max-width: 100%;
        margin-bottom: 5px;
        font-weight: 700;
    }
    .db_akkordion_mobile_clicker span {
        font-size: 14px;
        text-transform: uppercase;
        margin-bottom: 20px;
    }
    body .db_akkordion_mobile_clicker p {
        margin: 0 !important;
    }

    body .db_akkordion_mobile_clicker a,
    body .db_akkordion_mobile_clicker p {
        color: #797979;
        font-size: 13px;
        line-height: 24px;
        font-weight: 400;
        text-decoration: none;
    }

    body .db_akkordion_mobile_clicker a {
        margin-right: 5px;
    }

    body .db_akkordion_mobile_clicker a:last-child {
        margin-right: 0;
    }
</style>

<script>
    function defer(method) {
        if (window.jQuery) {
            method();
        } else {
            setTimeout(function() {
                defer(method);
            }, 50);
        }
    }

    defer(function () {
        var wrapper = $('#db_output'),
            container,
            i = 0;

        for (var key in liste) {
            i++;
            container = $('<div>');
            container.append('<input type="checkbox" name="checkbox" id="akkordion_mobile_' + i + '" class="hidden">');

            var label = $('<label for="akkordion_mobile_' + i + '" class="db_akkordion_mobile_clicker"></label>');
            var peh = $('<p />');

            for (var foo in liste[key]) {
                var sprache = foo; // de, en, fr, it
                var name = liste[key][foo].name; // deutsch, englisch, französisch, italienisch
                var url = liste[key][foo].url; // URL's
                peh.append('<a href="' + url + '" target="_blank">' + name + '</a>');
            }

            label.append('<span>' + key + '</span>');
            label.append(peh);
            container.append(label);
            wrapper.append(container);
        }

        var css = '';
        for (var step = 1; step < i+1; step++) {
            css += 'input[id="akkordion_mobile_' + step + '"]:checked + label[for="akkordion_mobile_' + step + '"]:after { content: "\\f068"; }';
            css += 'input[id="akkordion_mobile_' + step + '"]:checked + label[for="akkordion_mobile_' + step + '"] { height: 55px; max-height: 2000px; transition: max-height 1s ease-in-out; }';
        }

        function addcss(css){
            var head = document.getElementsByTagName('head')[0];
            var s = document.createElement('style');
            s.setAttribute('type', 'text/css');
            if (s.styleSheet) {   // IE
                s.styleSheet.cssText = css;
            } else {                // the world
                s.appendChild(document.createTextNode(css));
            }
            head.appendChild(s);
         }

        addcss(css);
    });
</script>