code: function setSize(elements, width, height) {
    return setStyleProp(elements, { width: width, height: height });
  }
docs: Set the provided size to elements.
  @param {(string|Array|NodeList|HTMLCollection)} elements - The iterable, selector or elements.
  @param {(number|string)} width - The width as number or string. For number, unit used will be pixels.
  @param {(number|string)} height - The height as number or string. For number, unit used will be pixels.
  @return {Array} iterable - The getElements' result for chaining.
  @example //esnext
  import { append, setSize } from 'chirashi'
  
  append(document.body, '.maki')
  
  setSize('.maki', 20, '100%') // returns: [<div class="maki" style="width: 20px; height: 100%;"></div>]
  @example //es5
  Chirashi.append(document.body, '.maki')
  
  Chirashi.setSize('.maki', 20, '100%') // returns: [<div class="maki" style="width: 20px; height: 100%;"></div>]