Elementor\Post_CSS_File::render_styles PHP Method

    private function render_styles(Element_Base $element)
    {
        $element_settings = $element->get_settings();
        $this->add_element_style_rules($element, $element->get_style_controls(), $element_settings, ['{{WRAPPER}}'], [$this->get_element_unique_selector($element)]);
        if ('column' === $element->get_name()) {
            if (!empty($element_settings['_inline_size'])) {
                $this->_columns_width[] = $this->get_element_unique_selector($element) . '{width:' . $element_settings['_inline_size'] . '%;}';
            }
        }
    }