Tooltips contain contextual annotations or helper text on demand when a user hovers or focuses on an element, usually in informational icon.
<div class="slab">
<div style="position:relative; display: inline-block; margin: 0 0 0 30rem">
<button class="button button--cta button--export">Export</button>
<div class="tooltip tooltip--right tooltip--under">
<p class="tooltip__content">Explanatory content about this element</p>
</div>
</div>
</div>
<div class="slab">
<div style="position:relative; display: inline-block; margin: 0 0 0 30rem">
<button class="button button--cta button--export">Export</button>
<div class="tooltip tooltip--right tooltip--under">
<p class="tooltip__content">Explanatory content about this element</p>
</div>
</div>
</div>
/* No context defined. */