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add a new tip on prefers-color-scheme media feature #149

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add a new tip on prefers-color-scheme media feature #149

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27 changes: 27 additions & 0 deletions README.md
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Expand Up @@ -44,6 +44,7 @@ A collection of tips to help take your CSS skills pro.
1. [Set `font-size` on Form Elements for a Better Mobile Experience](#set-font-size-on-form-elements-for-a-better-mobile-experience)
1. [Use Pointer Events to Control Mouse Events](#use-pointer-events-to-control-mouse-events)
1. [Set `display: none` on Line Breaks Used as Spacing](#set-display-none-on-line-breaks-used-as-spacing)
1. [Detect Whether the User Prefers Light Theme or Dark Theme](#detect-whether-the-user-prefers-light-theme-or-dark-theme)


### Use a CSS Reset
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<sup>[back to table of contents](#table-of-contents)</sup>


### Detect Whether the User Prefers Light Theme or Dark Theme

With The `prefers-color-scheme` Media Feature You Can Detect What Color Sheme Does the User Prefer

It Checks if the User Has Their System Settings Set To Light Mode or Dark Mode

```css
/* These Styles Will Apply if User Has Set Their System Settings to Dark Mode */
@media (prefers-color-scheme: dark) {
.element {
color: #fff;
background-color: #232323;
}
}
/* These Styles Will Apply if User Has Set Their System Settings to Light Mode */
@media (prefers-color-scheme: light) {
.element {
color: #232323;
background-color: #fff;
}
}
```

<sup>[back to table of contents](#table-of-contents)</sup>


## Support

Current versions of Chrome, Firefox, Safari, Opera, Edge, and IE11.
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