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Freezing User-Agent Strings

There’s been news about Chrome freezing their User-Agent string (and all other major browsers are on board). That means they’ll still have a User-Agent (UA) string (that comes across in headers and is available in JavaScript as navigator.userAgent. By freezing it, it will be less useful over time in detecting the browser/platform/version, although the quoted reason for doing it is more about privacy and stopping fingerprinting rather than developer concerns.

In the front-end world, the general advice is: you Read article “Freezing User-Agent Strings”

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Using Feature Detection to Write CSS with Cross-Browser Support

In early 2017, I presented a couple of workshops on the topic of CSS feature detection, titled CSS Feature Detection in 2017.

A friend of mine, Justin Slack from New Media Labs, recently sent me a link to the phenomenal Feature Query Manager extension (available for both Chrome and Firefox), by Nigerian developer Ire Aderinokun. This seemed to be a perfect addition to my workshop material on the subject.

However, upon returning to the material, I … Read article “Using Feature Detection to Write CSS with Cross-Browser Support”

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You Can’t Detect A Touchscreen

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Text Rotation

If what you are looking for is a way to set type vertically, you’re best bet is probably CSS writing-mode.

If you’re just trying to turn some text, you can rotate entire elements like this, which rotates it 90 degrees counterclockwise:

.rotate {

  transform: rotate(-90deg);


  /* Legacy vendor prefixes that you probably don't need... */

  /* Safari */
  -webkit-transform: rotate(-90deg);

  /* Firefox */
  -moz-transform: rotate(-90deg);

  /* IE */
  -ms-transform: rotate(-90deg);

  /* Opera */
  -o-transform: rotate(-90deg);

  /* Internet Explorer */
  
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