Responsive SVGs in React

tl;dr: You need to import the responsive svg as a ReactComponent

Firstly, you need a responsive SVG. And then you need to inport it as a ReactComponent in React

import React from 'react'

import logo from '../assets/img/logo-responsive.svg'
import { ReactComponent as Logo } from '../assets/img/logo-responsive.svg'

function Demo() {
  return (
    <div className="App-body">
        <h1>Responsive SVG Demo</h1>

        {/* the img will show but will not be responsive */}
        <img src={logo} alt="logo" />

        {/* the ReactComponent will be a respnsive SVG, but it'll add the entire SVG, 
         i.e. ALL the <symbol>s you defined will be in the code */}
        <Logo /> 

export default Demo