anchor.diff:     ========================================================================== */
   
   /**
  - * 1. Remove the gray background on active links in IE 10.
  - * 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
  + * Remove the gray background on active links in IE 10.
    */
   
   a {
  -  background-color: transparent; /* 1 */
  -  -webkit-text-decoration-skip: objects; /* 2 */
  -}
  -
  -/**
  - * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
  +  background-color: transparent;
  +}
  +
  +/**
  + * 1. Remove the bottom border in Chrome 57-
    * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
    */
   
  
positive.code: 
      <style type="text/css">
  <!--
  /*! normalize.css v7.0.0 | MIT License | github.com/necolas/normalize.css */
  
  /* Document
     ========================================================================== */
  
  /**
   * 1. Correct the line height in all browsers.
   * 2. Prevent adjustments of font size after orientation changes in
   *    IE on Windows Phone and in iOS.
   */
  
  html {
    line-height: 1.15; /* 1 */
    -ms-text-size-adjust: 100%; /* 2 */
    -webkit-text-size-adjust: 100%; /* 2 */
  }
  
  
negative.code: }
  
  /**
   * Correct the inability to style clickable types in iOS and Safari.
   */
  
  button,
  [type="button"],
  [type="reset"],
  [type="submit"] {
    -webkit-appearance: button;
  }
  
  /**
  