The HTML button element represents a clickable button, used to submit forms or anywhere in a document for accessible, standard button functionality. By default, HTML buttons are presented in a style resembling the platform the user agent runs on, but you can change buttons’ appearance with CSS.
<button class="favorite styled"
type="button">
Add to favorites
</button>
Source: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button