basham

CSS Media Queries: Best Practices

• Media queries have many features, but min-width is the most practical one, the one you should assume to use most of the time.
• Only use em within media query definitions, never pixels.
• Until there's wider rem support within media query, rem should be avoided in media query definitions as well.
• Assuming mobile is 320px and the body font size is 16px, then the breakpoint indicating mobile width in profile orientation would be 20em (320/16).
• Choose breakpoint values to serve the content, not to serve device deminsions.
• Never use media queries to define styles for the smallest viewport size.
• Use media queries to “enhance” or add or alter styles when the browser has a wider (or taller) vi

basham

import { useEffect, useReducer, useRef } from 'react';

export class Controller {
	#host;

	constructor (host) {
		this.#host = host;
		host?.addController(this);
	}

basham

/*

DESCRIPTION
-----------
Use NodeJS to read RFID ids through the USB serial stream. Code derived from this forum:
http://groups.google.com/group/nodejs/browse_thread/thread/e2b071b6a70a6eb1/086ec7fcb5036699

CODE REPOSITORY
---------------
https://gist.github.com/806605

basham

CSS units

Recommendations of unit types per media type:

Media	Recommended	Occasional use	Infrequent use	Not recommended
Screen	em, rem, %	px	ch, ex, vw, vh, vmin, vmax	cm, mm, in, pt, pc
Print	em, rem, %	cm, mm, in, pt, pc	ch, ex	px, vw, vh, vmin, vmax

Relative units

Relative units