chrome/browser/resources/welcome/shared/action_link_style_css.html

<template>
  <style>
    button.action-link {
      -webkit-appearance: none;
      background: none;
      border: none;
      color: var(--cr-link-color);
      cursor: pointer;
      display: inline-block;
      font-family: inherit;
      text-decoration: none;
    }

    button.action-link[disabled] {
      color: var(--paper-grey-600);
      cursor: default;
      opacity: 0.65;
    }

    :host-context(html:not(.focus-outline-visible)) button.action-link {
      outline: none;
    }
  </style>
</template>