title: Border circle looks blurry
body: <p>This circle with border looks blurry. Is it possible to fix it and how?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>div {
    border-radius: 50%;
    border: 1px solid black;
    height: 22px;
    width: 22px;
    background-color: white;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div&gt;&lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>