function setStyle(element, styles) {
  function is_numeric(n) {
    return n !== '' && !isNaN(parseFloat(n)) && isFinite(n)
  }
  Object.keys(styles).forEach(function (prop) {
    var unit = ''
    // add unit if the value is numeric and is one of the following
    if (
      ['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !==
        -1 &&
      is_numeric(styles[prop])
    ) {
      unit = 'px'
    }
    element.style[prop] = styles[prop] + unit
  })
}
Set the style to the given popper
@function
@ignore
@argument {Element} element - Element to apply the style to
@argument {Object} styles - Object with a list of properties and values which will be applied to the element