title: CSS Stripes With border-image
body: <p>I've been testing for a few hours but, I can't seem to get border-image to do what I want.</p>
  
  <p>I'm trying to add a bottom border to a div with horizontal stripes. That is 2px grey, 2px white and 2px grey; i.e. grey and white stripes.</p>
  
  <p><strong>Like so:</strong></p>
  
  <p><a href="https://i.stack.imgur.com/dVxmE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dVxmE.png" alt="enter image description here"></a></p>
  
  <p><strong>Here's what I have so far:</strong></p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>.box {
    height: 50px;
    background-color: #74c5fc;
    border-style: solid;
    border-image:
        linear-gradient(
           to top, 
           #ccc 0%, 
           #ccc 33%, 
           #fff 33%, 
           #fff 66%, 
           #ccc 66%, 
           #ccc 100%
        ) 1 1 / 0 0 6px 0
      ;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="box"&gt;&lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>What am I doing wrong?</p>