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https://github.com/rtfeldman/elm-css
Typed CSS in Elm.
https://github.com/rtfeldman/elm-css
Last synced: about 12 hours ago
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Typed CSS in Elm.
- Host: GitHub
- URL: https://github.com/rtfeldman/elm-css
- Owner: rtfeldman
- License: bsd-3-clause
- Created: 2015-09-20T16:52:06.000Z (about 9 years ago)
- Default Branch: master
- Last Pushed: 2024-04-01T22:10:10.000Z (9 months ago)
- Last Synced: 2024-12-05T16:47:08.405Z (8 days ago)
- Language: Elm
- Homepage: https://package.elm-lang.org/packages/rtfeldman/elm-css/latest
- Size: 7.72 MB
- Stars: 1,239
- Watchers: 18
- Forks: 197
- Open Issues: 80
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
- awesome-ccamel - rtfeldman/elm-css - Typed CSS in Elm. (Elm)
- awesome-list - elm-css
README
# elm-css
`elm-css` lets you define CSS in Elm. (For an Elm styling system that is a
complete departure from CSS, check out [Elm-UI](https://github.com/mdgriffith/elm-ui).)
Here's an example of how to define some `elm-css` styles:
```elm
module MyCss exposing (main)
import Css exposing (..)
import Html
import Html.Styled exposing (..)
import Html.Styled.Attributes exposing (css, href, src)
import Html.Styled.Events exposing (onClick)
{-| A logo image, with inline styles that change on hover.
-}
logo : Html msg
logo =
img
[ src "logo.png"
, css
[ display inlineBlock
, padding (px 20)
, border3 (px 5) solid (rgb 120 120 120)
, hover
[ borderColor theme.primary
, borderRadius (px 10)
]
]
]
[]
{-| A plain old record holding a couple of theme colors.
-}
theme : { secondary : Color, primary : Color }
theme =
{ primary = hex "55af6a"
, secondary = rgb 250 240 230
}
{-| A reusable button which has some styles pre-applied to it.
-}
btn : List (Attribute msg) -> List (Html msg) -> Html msg
btn =
styled button
[ margin (px 12)
, color (rgb 250 250 250)
, hover
[ backgroundColor theme.primary
, textDecoration underline
]
]
{-| A reusable style. Css.batch combines multiple styles into one, much
like mixins in CSS preprocessors.
-}
paragraphFont : Style
paragraphFont =
Css.batch
[ fontFamilies [ "Palatino Linotype", "Georgia", "serif" ]
, fontSize (px 16)
, fontWeight normal
]
{-| Css.property lets you define custom properties, using strings as their values.
-}
legacyBorderRadius : String -> Style
legacyBorderRadius amount =
Css.batch
[ property "-moz-border-radius" amount
, property "-webkit-border-top-left-radius" amount
, property "-webkit-border-top-right-radius" amount
, property "-webkit-border-bottom-right-radius" amount
, property "-webkit-border-bottom-left-radius" amount
, property "border-radius" amount
]
view : Model -> Html Msg
view model =
nav []
[ img [ src "assets/backdrop.jpg", css [ width (pct 100) ] ] []
, btn [ onClick DoSomething ] [ text "Click me!" ]
]
main : Program Never Model Msg
main =
Html.beginnerProgram
{ view = view >> toUnstyled
, update = update
, model = initialModel
}
```
See [the `Css` module documentation](http://package.elm-lang.org/packages/rtfeldman/elm-css/latest/Css) for an explanation of how this code works.
`elm-css` draws inspiration from the excellent [Sass](http://sass-lang.com/), [Stylus](http://stylus-lang.com/), [CSS Modules](http://glenmaddern.com/articles/css-modules), and [styled-components](https://www.styled-components.com) libraries. It includes features like:
- [locally scoped CSS](https://medium.com/seek-blog/the-end-of-global-css-90d2a4a06284)
- [mixins](http://package.elm-lang.org/packages/rtfeldman/elm-css/latest/Css#batch)
- [nested media queries](https://davidwalsh.name/write-media-queries-sass) (as well as pseudo-classes like `:hover` and pseudo-elements like `::after`)
### Examples
- A [reusable datepicker](https://github.com/abadi199/datetimepicker) built by Abadi Kurniawan
- The [website](https://noredink.github.io/json-to-elm) for [json-to-elm](https://github.com/eeue56/json-to-elm)
- This project's [examples](https://github.com/rtfeldman/elm-css/tree/master/examples) folder
## Related Projects
- [Elm CSS Normalize](https://github.com/scottcorgan/elm-css-normalize)