message: Update Tooltip component
diff: import PropTypes from 'prop-types';
  import styled from '@emotion/styled';
  -import { css } from 'emotion';
  +import { css } from '@emotion/core';
  import { includes } from 'lodash';
  import { textKilo, shadowSingle } from '../../styles/style-helpers';
  @@ -83,7 +83,7 @@ const getAlignmentStyles = ({ theme, position, align }) => {
  const absolutePosition = positionMap[align];
  return `
  - ${absolutePosition}: 50%; ${'' /* Fallback */}
  + ${absolutePosition}: 50%;
  ${absolutePosition}: calc(50% - (${theme.spacings.mega} + ${
  theme.spacings.bit
  }));
  @@ -104,7 +104,8 @@ const positionAndAlignStyles = ({ theme, position, align }) => css`
  * A Tooltip component
  */
  const Tooltip = styled('div')`
  - ${baseStyles} ${positionAndAlignStyles};
  + ${baseStyles};
  + ${positionAndAlignStyles};
  `;
  Tooltip.CENTER = CENTER;
  