<button class="button is-hover">
Primaarne
</button>
<button class="button button--secondary is-hover">
Sekundaarne
</button>
<button class="button button--contrast is-hover">
Kontrastne
</button>
<button class="button button--triarity is-hover">
Tertsiaarne
</button>
{
"state": "is-hover"
}