import React from "react" ; import { Theme } from "@mui/material" ; import createStyles from "@mui/styles/createStyles" ; import makeStyles from "@mui/styles/makeStyles" ; const useStyles = makeStyles < Theme > ( theme => createStyles ( { root : { borderRadius : "9999px" , backgroundColor : "rgba(128,128,128,0.1)" , width : "18px" , height : "6px" , display : "inline-block" } } ) ) ; category export function EmptyValue ( ) { const classes = useStyles ( ) ; return ( < div className = { classes . root } / > ) ; }