CSS Dark Mode

CSS Dark Mode

https://kevq.uk/automatic-dark-mode/

https://kevq.uk/how-to-add-css-dark-mode-to-a-website/

css variables

:root {
  --accent: #226997;
  --main: #333;
  --light: #666;
  --lighter: #f3f3f3;
  --border: #e6e6e6;
  --bg: #ffffff;
}

/* dark mode */
:root {
  --accent: #3493d1;
  --main: #f3f3f3;
  --light: #ececec;
  --lighter: #666;
  --border: #e6e6e6;
  --bg: #333333;
}

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css & dark theme

demo

https://create-react-app.dev/docs/getting-started/#creating-an-app

prefers-color-scheme

https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme

.day {
  background: #eee; color: black;
}
.night {
  background: #333; color: white;
}

@media (prefers-color-scheme: dark) {
  .day.dark-scheme   {
    background:  #333; color: white;
  }
  .night.dark-scheme {
    background: black; color:  #ddd;
  }
}

@media (prefers-color-scheme: light) {
  .day.light-scheme   {
    background: white; color:  #555;
  }
  .night.light-scheme {
    background:  #eee; color: black;
  }
}

.day, .night {
  display: inline-block;
  padding: 1em;
  width: 7em;
  height: 2em;
  vertical-align: middle;
}

https://caniuse.com/#search=prefers-color-scheme

https://davidwalsh.name/prefers-color-scheme

https://web.dev/prefers-color-scheme/

https://codepen.io/xgqfrms/pen/RwPyQpB

https://dev.to/rafi993/apply-dark-theme-to-your-site-using-prefers-color-scheme-1k4h

https://github.com/csstools/css-prefers-color-scheme

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https://www.cnblogs.com/xgqfrms/p/11044246.html

https://www.cnblogs.com/xgqfrms/protected/p/11165136.html

html customize element & dark theme

https://codepen.io/xgqfrms/pen/eYJBBVB

See the Pen html customize element & dark theme by xgqfrms
(@xgqfrms) on CodePen.

https://developers.google.com/web/fundamentals/performance/critical-rendering-path/render-tree-construction?hl=zh-cn

js toggle theme

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