keycloak-theme/common/resources/scss/button.scss

.ps-button {
  font-size: 1rem;
  padding: 0.5em 1em;
  line-height: 1.2em;
  border: 0.125em solid var(--foreground);
  border-radius: 1.5em;
  background-color: var(--background-darker-2); 
  cursor: pointer;

  &:hover,
  &:focus {
    border-color: var(--accent);
  }

  &_primary {
    border: 0.25em solid var(--foreground);
    background-color: var(--background);
    color: var(--foreground);
    font-weight: bold;

    &:focus,
    &:hover {
      background-color: var(--foreground);
      color: var(--background);
    }
  }

  &_small {
    font-size: 0.8rem;
    padding: 0.25em 0.7em;
  }
}