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Hasty Treat - CSS Nesting 1

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Manage episode 289778807 series 1469447
Contenuto fornito da Wes Bos and Scott Tolinski - Full Stack JavaScript Web Developers. Tutti i contenuti dei podcast, inclusi episodi, grafica e descrizioni dei podcast, vengono caricati e forniti direttamente da Wes Bos and Scott Tolinski - Full Stack JavaScript Web Developers o dal partner della piattaforma podcast. Se ritieni che qualcuno stia utilizzando la tua opera protetta da copyright senza la tua autorizzazione, puoi seguire la procedura descritta qui https://it.player.fm/legal.

In this Hasty Treat, Scott and Wes talk about CSS nesting — what it is, when to use it, and why.

Prismic - Sponsor

Prismic is a Headless CMS that makes it easy to build website pages as a set of components. Break pages into sections of components using React, Vue, or whatever you like. Make corresponding Slices in Prismic. Start building pages dynamically in minutes. Get started at prismic.io/syntax.

Sentry - Sponsor

If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up.

Show Notes

04:22 - What is it?

06:02 - Why nest?

  • Easier to read
  • Easier to write
  • Prevents refactoring errors, allows for dry-er code. No more typing a parent div 100 times, with a possibility of screwing it up.

08:13 - When to use nesting

  • Nesting is often overused
  • Only nest what you would have written un-nested with a short hand (e.g. don’t nest just for the sake of it)
    • .container .item {} .container .item a {}
  • Use it for scoping

10:06 - Nesting prefixes

  • In order to nest CSS, you must first start it with a nesting selector
.tweet { & > p { } &.media-included { color: green; } & + .tweet { } // sibling & p { } // descentang }
  • Component-based — tweet, card, company, Link
article{ color: blue; & { color: red; } }

and must be the first child of a compound selector

12:44 - @nest rule / media queries

  • Mostly just a visual way to show nested
.foo { display: grid; @media(orientation: landscape) { & { grid-auto-flow: column; } } } .foo { display: grid; @media (orientation: landscape) { & { grid-auto-flow: column; } @media (min-inline-size > 1024px) { & { max-inline-size: 1024px; } } } } /* equivalent to .foo { display: grid; } @media (orientation: landscape) { .foo { grid-auto-flow: column; } } @media (orientation: landscape) and (min-inline-size > 1024px) { .foo { max-inline-size: 1024px; } } */

16:30 - How to use nesting today

  • Literally any CSS preprocessor
  • PostCSS to use spec
Links Tweet us your tasty treats!
  continue reading

750 episodi

Artwork
iconCondividi
 
Manage episode 289778807 series 1469447
Contenuto fornito da Wes Bos and Scott Tolinski - Full Stack JavaScript Web Developers. Tutti i contenuti dei podcast, inclusi episodi, grafica e descrizioni dei podcast, vengono caricati e forniti direttamente da Wes Bos and Scott Tolinski - Full Stack JavaScript Web Developers o dal partner della piattaforma podcast. Se ritieni che qualcuno stia utilizzando la tua opera protetta da copyright senza la tua autorizzazione, puoi seguire la procedura descritta qui https://it.player.fm/legal.

In this Hasty Treat, Scott and Wes talk about CSS nesting — what it is, when to use it, and why.

Prismic - Sponsor

Prismic is a Headless CMS that makes it easy to build website pages as a set of components. Break pages into sections of components using React, Vue, or whatever you like. Make corresponding Slices in Prismic. Start building pages dynamically in minutes. Get started at prismic.io/syntax.

Sentry - Sponsor

If you want to know what’s happening with your code, track errors and monitor performance with Sentry. Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and optimize their code health. Cut your time on error resolution from hours to minutes. It works with any language and integrates with dozens of other services. Syntax listeners new to Sentry can get two months for free by visiting Sentry.io and using the coupon code TASTYTREAT during sign up.

Show Notes

04:22 - What is it?

06:02 - Why nest?

  • Easier to read
  • Easier to write
  • Prevents refactoring errors, allows for dry-er code. No more typing a parent div 100 times, with a possibility of screwing it up.

08:13 - When to use nesting

  • Nesting is often overused
  • Only nest what you would have written un-nested with a short hand (e.g. don’t nest just for the sake of it)
    • .container .item {} .container .item a {}
  • Use it for scoping

10:06 - Nesting prefixes

  • In order to nest CSS, you must first start it with a nesting selector
.tweet { & > p { } &.media-included { color: green; } & + .tweet { } // sibling & p { } // descentang }
  • Component-based — tweet, card, company, Link
article{ color: blue; & { color: red; } }

and must be the first child of a compound selector

12:44 - @nest rule / media queries

  • Mostly just a visual way to show nested
.foo { display: grid; @media(orientation: landscape) { & { grid-auto-flow: column; } } } .foo { display: grid; @media (orientation: landscape) { & { grid-auto-flow: column; } @media (min-inline-size > 1024px) { & { max-inline-size: 1024px; } } } } /* equivalent to .foo { display: grid; } @media (orientation: landscape) { .foo { grid-auto-flow: column; } } @media (orientation: landscape) and (min-inline-size > 1024px) { .foo { max-inline-size: 1024px; } } */

16:30 - How to use nesting today

  • Literally any CSS preprocessor
  • PostCSS to use spec
Links Tweet us your tasty treats!
  continue reading

750 episodi

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