<div class="container">
<button class="rainbow-button">
<div class="rainbow-button-hover">
default button
</div>
</button>
<button class="rainbow-button rainbow-button--alert">
<div class="rainbow-button-hover rainbow-button-hover--light">
alert button
</div>
</button>
<button class="rainbow-button rainbow-button--primary">
<div class="rainbow-button-hover rainbow-button-hover--light">
primary button
</div>
</button>
<button class="rainbow-button rainbow-button--secondary">
<div class="rainbow-button-hover rainbow-button-hover--light">
secondary button
</div>
</button>
<div>