Day 106: the scripting media feature

posted on

It’s time to get me up to speed with modern CSS. There’s so much new in CSS that I know too little about. To change that I’ve started #100DaysOfMoreOrLessModernCSS. Why more or less modern CSS? Because some topics will be about cutting-edge features, while other stuff has been around for quite a while already, but I just have little to no experience with it.

The scripting media feature is an excellent addition to CSS for those who believe in progressive enhancement: It enables you to detect whether scripting languages, such as JavaScript, are supported.

If you disable Javascript in Firefox 117+, Chrome 120+, or Safari 17+ on this page, the disclosure widget below hides the button and displays the content instead.

Detailed content goes here…

CSS

@media (scripting: enabled) {
  .disclosure-content {
    display: none;
  }
}

@media (scripting: none) {
  button[aria-expanded] {
    display: none;
  }
}

HTML

<div class="disclosure">
  <button aria-expanded="false">
    Show details
  </button> 

  <div class="disclosure-content" id="content">
    <p>Detailed content goes here…</p>
  </div>
</div>

JS

const button = document.querySelector('button');

button.addEventListener('click', e => {
  button.setAttribute('aria-expanded', button.getAttribute('aria-expanded') === "false")
})

PS: Yes, I know, it's better not to ship the button in the first place instead of hiding it.

See on CodePen

Do you want to learn even more awesome CSS?

I'm running a workshop with my friends at Smashing Magazine in which I introduce you to the most useful modern features in CSS and show how you can implement them today in your code base to improve scalability, maintainability, and productivity.

Learn more about the workshop!

Overview: 100 Days Of More Or Less Modern CSS