example.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <form id="salesjetForm">
      <input type="text" placeholder="FIRST NAME" name="first_name" />
      <input type="text" placeholder="LAST NAME" name="last_name" />
      <input type="text" placeholder="email" name="email" />
      <input type="submit" />
    </form>
    <script
      src="https://salesjet-cdn.s3.amazonaws.com/submitFormToSalesJet.js"
      integrity="sha384-Vk3vL8B71TgtOZXxU+wj2b8A8neOGhwXYb4KjFPU8fYzcI7N9M0oaw3AqbPsbDqK"
      crossorigin="anonymous"
    ></script>
    <script>
      connectWithSalesJet(
        "[API_KEY]",
        "[CUSTOM_EVENT]",
        "#salesjetForm",
        "no-alert"
      );
    </script>
  </body>
</html>