Components
Spinner
Add it to an element with aria-busy="true". Spinners are always
indeterminate. See also: Progress bar.
<div aria-busy="true"></div>Sizes
The spinner's size is set to 1em, which means it will adjust
to its current font size.
<h2 aria-busy="true">h2</h2><h4 aria-busy="true">h4</h4><p aria-busy="true">Paragraph</p><span aria-busy="true">Span</span><a href="#sizes" aria-busy="true" class="link">Link</a>Buttons
Simply add aria-busy="true" to a <button>.
<!-- Text buttons --><button aria-busy="true" class="button">Text</button><button aria-busy="true" disabled class="button outlined">Outlined</button><button aria-busy="true" class="button filled">Filled</button>
<!-- Icon buttons --><button aria-busy="true" class="button"> <span class="sr-only">Text</span></button><button aria-busy="true" disabled class="button outlined"> <span class="sr-only">Outlined</span></button><button aria-busy="true" class="button filled"> <span class="sr-only">Filled</span></button>When not to use aria-busy="true"
There are a few exceptions where aria-busy="true" won't render
a spinner. Either because it doesn't make sense or because there are other reasons
you would like to use that aria attribute.
1. Because it's blocked by another use case
In conjunction with the <progress> element aria-busy="true" is used on the section that is being updated. Rendering a spinner here would
result in a spinner and a progress bar which doesn't make sense.
See progress accessibility section for more.
2. Because it doesn't make sense
<input><select><textarea><html><progress>
Installation
@layer components.root {
[aria-busy="true"]:not(input, select, textarea, html, progress, [aria-describedby]) { position: relative;
&::before { animation: spin 0.7s linear infinite; block-size: 1em; border-color: transparent currentColor currentColor; border-radius: 50%; border-style: solid; border-width: 3px; content: ""; display: inline-block; inline-size: 1em; opacity: 0.5; vertical-align: -0.14em; }
&:not(button.button):not(:empty) { &::before { margin-inline-end: 0.5em; } } }
@keyframes spin { to { transform: rotate(1turn); } }}