I have a setup where I’m transitioning the height of an element and want to set the display: none when it is closed:
const toggle = () => {
document.querySelectorAll('.thing').forEach(
(el) => el.classList.toggle('closed')
)
}
document.querySelector('button').addEventListener('click', toggle).thing {
overflow: hidden;
height: 50px;
transition-property: height, display;
transition-duration: 1s;
transition-behavior: allow-discrete;
outline: 1px solid blue;
}
.thing.closed {
height: 0;
}
.thing.discrete.closed {
display: none;
}<div class="thing">
I am thing
</div>
<div class="thing discrete">
I am a discrete thing
</div>
<button>Toggle</button>In Chrome the demo it works fine going from open to closed and the allow-discrete is working as expected in both directions. However going in the opposite direction it is instantly 50px high and I’m not sure why.
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