class HtmlElementDecorator(HtmlElement):
    def __init__(self, element):
        self.element = element

    def render(self):
        return self.element.render()

class StyledDiv(HtmlElementDecorator):
    def render(self):
        return "<div class='styled-div'>" + self.element.render() + "</div>\n"

class StyledLabel(HtmlElementDecorator):
    def render(self):
        return "<label class='styled-label'>" + self.element.render() + "</label>\n"

class StyledInput(HtmlElementDecorator):
    def render(self):
        return "<input class='styled-input' type='text'/>\n"

class StyledSelect(HtmlElementDecorator):
    def render(self):
        return "<select class='styled-select'><option>Option</option></select>\n"

class StyledSubmit(HtmlElementDecorator):
    def render(self):
        return "<input class='styled-submit' type='submit'/>\n"