open-props/src/props.aspects.js

<div align="center"> 

export default {
  '--ratio-square': '1',
  '--ratio-landscape': '4/3',
  '--ratio-portrait': '3/4',
  '--ratio-widescreen': '16/9',
  '--ratio-ultrawide': '18/5',
  '--ratio-golden': '1.6180/1',
}