h1.swift

public func h1(_ attributes: [String:String]) -> ([HtmlElement]) -> HtmlElement {
    return { content in return HtmlElement.Node(tagName: "h1", attributes: attributes, content: content) }
}

public func h1(_ attributes: [String:String], _ content: [HtmlElement]) -> HtmlElement {
    return h1(attributes)(content)
}

public func h1(_ content: [HtmlElement]) -> HtmlElement {
    return h1([:], content)
}