Assuming you’re referring to the HTML aria-expanded
attribute and you want to hide an element based on its value, you can use CSS to achieve this. Here’s an example:
HTML:
<button aria-expanded="false">Toggle content</button>
<div class="content">Some content to toggle</div>
CSS:
.content {
display: none;
}
[aria-expanded="true"] + .content {
display: block;
}
In this example, the content is initially hidden with the display: none;
CSS property. When the button is clicked, the aria-expanded
attribute is toggled to "true"
, which then triggers the CSS selector [aria-expanded="true"] + .content
to apply the display: block;
property to the content, revealing it.
So, by default, the content is hidden and when aria-expanded="false"
, it won’t be displayed.