width-field.jsx

funtion WidthField({ label, describing }) {
   // Not sure about `describing`, but wanted some way to associate what the whole field is related to

  return (
     <Fieldset>
       <Legend><VisuallyHidden>{describing}</VisuallyHidden> {label}</Legend>
       
       <RadioButtonGroup>
         <VisuallyHidden><Label> type (?)</Label></VisuallyHidden>
       </RadioButtonGroup>
       <Flex>
          <ScreenReaderHidden> {/* screen readers won't need the slider b/c they have the input *}
            <Slider id="slider-id" className="flex-grow"/>
          </ScreenReaderHidden>
          <VisuallyHidden><Label>pixel width</Label></VisuallyHidden>
          <Input append="px"/>
       </Flex>
     </Fieldset>
  )
}