protected function createSliderContainer()
    {
//Slider container
        $customCssClass = isset($this->containerOptions['class']) ? ' ' . $this->containerOptions['class'] : '';
        $this->containerOptions = [];
        $this->containerOptions['style'] = "width:{$this->sliderWidth}px; height:{$this->sliderHeight}px";
        $this->containerOptions['class'] = "slider-container slider-container-{$this->id}$customCssClass";
    }