diff --git a/html/forms/html-form-structure/payment-form.css b/html/forms/html-form-structure/payment-form.css
deleted file mode 100644
index 64760e492..000000000
--- a/html/forms/html-form-structure/payment-form.css
+++ /dev/null
@@ -1,64 +0,0 @@
-h1 {
-    margin-top: 0;
-}
-
-ul {
-    margin: 0;
-    padding: 0;
-    list-style: none;
-}
-
-form {
-    margin: 0 auto;
-    width: 400px;
-    padding: 1em;
-    border: 1px solid #CCC;
-    border-radius: 1em;
-}
-
-div+div {
-    margin-top: 1em;
-}
-
-label span {
-    display: inline-block;
-    width: 120px;
-    text-align: right;
-}
-
-input, textarea {
-    font: 1em sans-serif;
-    width: 250px;
-    box-sizing: border-box;
-    border: 1px solid #999;
-}
-
-input[type=checkbox], input[type=radio] {
-    width: auto;
-    border: none;
-}
-
-input:focus, textarea:focus {
-    border-color: #000;
-}
-
-textarea {
-    vertical-align: top;
-    height: 5em;
-    resize: vertical;
-}
-
-fieldset {
-    width: 250px;
-    box-sizing: border-box;
-    margin-right: 136px;
-    border: 1px solid #999;
-}
-
-button {
-    margin: 20px 0 0 124px;
-}
-
-label {
-  position: relative;
-}
diff --git a/html/forms/html-form-structure/payment-form.html b/html/forms/html-form-structure/payment-form.html
deleted file mode 100644
index 6e63c7d40..000000000
--- a/html/forms/html-form-structure/payment-form.html
+++ /dev/null
@@ -1,94 +0,0 @@
-<!DOCTYPE html>
-<html lang="en-us">
-  <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width">
-    <title>Payment form example</title>
-    <link href="payment-form.css" rel="stylesheet">
-  </head>
-
-<body>
-    <form method="post">
-        <h1>Payment form</h1>
-        <p>Required fields are followed by <strong><span aria-label="required">*</span></strong>.</p>
-        <section>
-            <h2>Contact information</h2>
-            <fieldset>
-              <legend>Title</legend>
-              <ul>
-                  <li>
-                    <label for="title_1">
-                      <input type="radio" id="title_1" name="title" value="A">
-                      Ace
-                    </label>
-                  </li>
-                  <li>
-                    <label for="title_2">
-                      <input type="radio" id="title_2" name="title" value="K" >
-                      King
-                    </label>
-                  </li>
-                  <li>
-                    <label for="title_3">
-                      <input type="radio" id="title_3" name="title" value="Q">
-                      Queen
-                    </label>
-                  </li>
-              </ul>
-            </fieldset>
-            <p>
-              <label for="name">
-                <span>Name: </span>
-                <strong><span aria-label="required">*</span></strong>
-              </label>
-              <input type="text" id="name" name="username" required>
-            </p>
-            <p>
-              <label for="mail">
-                <span>E-mail: </span>
-                <strong><span aria-label="required">*</span></strong>
-              </label>
-              <input type="email" id="mail" name="usermail" required>
-            </p>
-            <p>
-              <label for="pwd">
-                <span>Password: </span>
-                <strong><span aria-label="required">*</span></strong>
-              </label>
-              <input type="password" id="pwd" name="password" required>
-            </p>
-        </section>
-        <section>
-            <h2>Payment information</h2>
-            <p>
-              <label for="card">
-                <span>Card type:</span>
-              </label>
-              <select id="card" name="usercard">
-                <option value="visa">Visa</option>
-                <option value="mc">Mastercard</option>
-                <option value="amex">American Express</option>
-              </select>
-            </p>
-            <p>
-              <label for="number">
-                <span>Card number:</span>
-                <strong><span aria-label="required">*</span></strong>
-              </label>
-                <input type="tel" id="number" name="cardnumber" required>
-            </p>
-            <p>
-              <label for="expiration">
-                <span>Expiration date:</span>
-                <strong><span aria-label="required">*</span></strong>
-              </label>
-              <input type="text" id="expiration" required="true" placeholder="MM/YY" pattern="^(0[1-9]|1[0-2])\/([0-9]{2})$">
-            </p>
-        </section>
-        <section>
-            <p> <button type="submit">Validate the payment</button> </p>
-        </section>
-    </form>
-</body>
-
-</html>
