getStyles = ({
  // eslint-disable-next-line no-unused-vars
  titleColor,
  textColor,
}) => {
  return `
    .stat {
      font: 600 14px 'Segoe UI', Ubuntu, "Helvetica Neue", Sans-Serif; fill: ${textColor};
    }
    @supports(-moz-appearance: auto) {
      /* Selector detects Firefox */
      .stat { font-size:12px; }
    }
    .stagger {
      opacity: 0;
      animation: fadeInAnimation 0.3s ease-in-out forwards;
    }
    .not_bold { font-weight: 400 }
    .bold { font-weight: 700 }
  `;
}
Retrieves CSS styles for a card.

@param {Object} colors The colors to use for the card.
@param {string} colors.titleColor The title color.
@param {string} colors.textColor The text color.
@returns {string} Card CSS styles.