var paddingMin = document.getElementById('slider-padding-value-min');
var paddingMax = document.getElementById('slider-padding-value-max');

paddingSlider.noUiSlider.on('update', function (values, handle) {
    if (handle) {
        paddingMax.innerHTML = values[handle];
    } else {
        paddingMin.innerHTML = values[handle];
    }
});