Legen Sie das Javascript ab: Lernen Sie zuerst HTML und CSS

Ein wachsender Trend in der Front-End-Entwicklung ist die Idee, dass Sie direkt in Javascript eintauchen und erfolgreich sein können. Ehrlich gesagt, zum Guten oder Schlechten können Sie wahrscheinlich. Aber Sie bauen nur auf einem zerbrechlichen Fundament auf, das Sie beißen wird.

Warum brauche ich HTML oder CSS?

Die heute bekannten UI-Frameworks wie React und Vue bauen auf den Grundbausteinen einer Webseite auf: HTML und CSS. Obwohl diese UI-Frameworks diese Grundlagen durch einige coole Tools und Javascript aufladen, ist das, was Sie erstellen, im Grunde dasselbe wie die Space Jam-Website von 1996.

Aber ich verstehe, das manuelle Schreiben von HTML und CSS ist veraltet, oder?

Verstehen Sie, was Ihre Werkzeuge tun

Wenn Sie zumindest ein grundlegendes Verständnis dafür haben, was unter der Haube vor sich geht, können Sie Ihre Anwendungen immens entwickeln und debuggen.

Möglicherweise sind Sie im Browser auf einige merkwürdige Dinge gestoßen, z. B. warum HTML-Code dort Code transformiert. Verwenden Sie Folgendes als Beispiel:

 p { color: purple; }  

My Cool Page

Some cool stuff Is this still cool?

Wenn Sie dies in Chrome laden, werden Sie einige Änderungen bemerken ...

Warum sind nicht alle meine Absätze cool und lila?

Es stellt sich heraus, dass Ihr Browser hilfreich ist und Ihren Code automatisch korrigiert. Ein Absatz-Tag (

Learn the magic of CSS

CSS can do a whole heck of a lot these days. It’s so much more than setting a few colors, but gives you the ability to provide consistent UI patterns throughout your application.

Don’t be afraid of it! If you started in Javascript, you might be tempted to do everything there, but you’ll quickly find managing all of the real power of CSS within your JS is a pain, and frankly, unnecessary unless you’re Facebook.

What can you do? Build the Alien movie title scene with pure CSS. Grab some hover effects for your buttons. Or just animate anything!

A favorite of mine is creating a fancy Facebook-like loading animation class that will apply an animated gradient background to anything you add it to:

.loading { background: linear-gradient(90deg, #eff1f1 30%, #f7f8f8 50%, #eff1f1 70%); background-size: 400%; animation: loading 1.2s ease-in-out infinite; } @keyframes loading { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

Original text

Crack open a codepen and try it yourself!

Make your search results relevant

Search engines do their best to figure out how the content you write is relevant to users searching for it. But how you write your HTML makes a difference with helping them determine that value. A common mistake I see is using Heading elements incorrectly or simply not using them at all.






Consider the outline of this blog post:

- Put Down the Javascript - Learn HTML & CSS - Why do I need HTML or CSS? - Understand what Your tools are doing - Learn the magic of CSS ...

“Learn the magic of CSS” is not the key takeaway from the page, so I wouldn’t want to feature that as the most important. The title of the post however, “Put Down the Javascript — Learn HTML & CSS”, reflects the overall story, making it the most important, so I would want to make it #1.

So with my HTML, I would want to make it look something more like:

Put Down the Javascript - Learn HTML & CSS

Why do I need HTML or CSS?

Understand what Your tools are doing

Put Down the JS - Learn HTML & CSS/h2>

This lets Google, Bing, and all the other search engines know exactly what should be the most important part of the page and help identify the general hierarchy.

Drive accessibility by inclusive development

By not coding responsibly, we automatically exclude people from accessing the site we work so hard to build. Often these people care about what’s getting built just as much if not more than you and I do.

By doing a little homework the first time and spending an extra second thinking about what we’re writing, we can be inclusive to all friends visiting our sites.

Take a simple navigation list commonly seen in most websites today. You might be tempted to write out a few div s because they work right?

 Link 1 Link 2 Link 3 

The issue is, they’re not as easy for screen readers to pick up on. To fix this, you /technically/ can write even less HTML ( div is 3 characters, ul and li are 2 ?).

  • Link 1
  • Link 2
  • Link 3

Taking it a step further, if this is your navigation menu, wrap it in an HTML 5 navigation element () and users will now be able to directly access the menu.

Check out The A11y Project for more good tips on accessibility.

Simplify your code, embrace native functionality

You would be surprised how much functionality exists natively in modern browsers, with more browser support than you probably need (sorry to those of you who still support IE9).

With some basic HTML, you can build a text input that has searchable, autocomplete-like text in a dropdown:

My Favorite Color      

Taking advantage of CSS pseudo selectors, we can dynamically style a checkbox-type element depending on if it’s checked:

 .is-checked { display: none; } #my-checkbox:checked + span .is-checked { display: inline; } #my-checkbox:checked + span .not-checked { display: none; }     Not Checked Checked  

This is Your Craft, Pay Attention to It

I’d wager the majority of the people reading this are doing so because they care about their code and are super passionate about what they do. Just like any other craft that came before development, practicing and focusing on the fundamentals will strengthen your ability as a developer. Bonus, you’ll be getting an easy win by helping be more inclusive with your work and getting more people to your application!

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Originally published at //www.colbyfayock.com/2019/08/put-down-the-javascript-learn-html-css