676.

Code example for blinking text

www.w3docs.com/tools/code-editor/13719 
<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      .blink {
        animation: blink-animation 1s steps(5, start) infinite;
        -webkit-animation: blink-animation 1s steps(5, start) infinite;
      }
      @keyframes blink-animation {
        to {
          visibility: hidden;
        }
      }
      @-webkit-keyframes blink-animation {
        to {
          visibility: hidden;
        }
      }
    </style>
  </head>
  <body>
    Here is a <span class="blink">blinking</span> text.
  </body>
</html>
css,html