spee.ch/client/scss/components/_button-secondary.scss

.button--secondary, .button--secondary:focus {
  border: 0;
  border-bottom: $button-border-width $button-border-strength $primary-color;
  padding: 0.5em;
  color: $primary-color;
  background-color: $background-color;
  outline: 0;
}

.button--secondary:focus{
  border-color: $secondary-color;
  background-color: $tertiary-color;
}

.button--secondary:hover {
  color: $interactive-color;
}

.button--secondary:active {
  color: $background-color;
}