Type-safe <style> tags for elm-lang/html

When using elm-reactor, there's currently no way to (easily) include a CSS file for use by your view. The elm-css package allows you to code type-safe stylesheets in Elm and render them to your view like any other node.

What makes elm-css "type-safe" is that all the IDs and classes used by your HTML nodes are set by functions that are built when your stylesheets are created. This ensures that they will match up.

For example:

type Id = MyId
type Class = MyClass

-- import a font
imports = ["https://fonts.googleapis.com/css?family=Droid+Sans:400"]

-- create a rule
rule =
    { selectors = [Css.Class MyClass]
    , descriptor = [("font-family", "Droid Sans")]
    }
    
-- create the stylesheet
stylesheet = Css.stylesheet imports [rule]

-- render some HTML that uses it
render =
    Html.div []
        [ stylesheet.node
        , div [ stylesheet.class MyClass ] [ Html.text "Droid Sans!" ]
        ]

List of currently supported features:

@import urls
Type selectors (e.g. "div")
Id selectors (e.g. "#content")
Class selectors (e.g. ".menu-item")
Descendant selectors (e.g. "div table")
Immediate child selectors (e.g. "hr > p")
Sibling selectors (e.g. "li ~ li")
Adjacent selectors (e.g. "br + p")
Pseudo classes and elements (e.g. "p:first-line:first-letter::after")

billstclair/elm-css

Type-safe <style> tags for elm-lang/html