@activelylearn/material-ui/packages/material-ui/src/styles/createMixins.js

Material-UI's workspace package

// @flow

export default function createMixins(breakpoints: Object, spacing: Object, mixins: Object) {
  return {
    gutters: (styles: Object = {}) => {
      return {
        paddingLeft: spacing.unit * 2,
        paddingRight: spacing.unit * 2,
        ...styles,
        [breakpoints.up('sm')]: {
          paddingLeft: spacing.unit * 3,
          paddingRight: spacing.unit * 3,
          ...styles[breakpoints.up('sm')],
        },
      };
    },
    toolbar: {
      minHeight: 56,
      [`${breakpoints.up('xs')} and (orientation: landscape)`]: {
        minHeight: 48,
      },
      [breakpoints.up('sm')]: {
        minHeight: 64,
      },
    },
    ...mixins,
  };
}