resize-js.md

  window.addEventListener('resize', resizeWidth)
 
  function resizeWidth() {
    console.log('resize')
    const body = document.getElementsByTagName('body')[0]
    var heRatio = window.innerHeight / 1080
    var widRatio = window.innerWidth / 1920
    var ratio = widRatio + ',' + heRatio
    body.style.transform = 'scale(' + ratio + ')'
    body.style.transformOrigin = 'left top'
    body.style.backgroundSize = '100% 100%'
    body.style.backgroundPosition = 'left top'
    body.style.width = '1920px'
    body.style.height = '1080px'
    body.style.backgroundColor = '#021b2d'
  }