adding validation to html code code example

Example 1: javascript login validation

<html>
<body>
<form id="form1" runat="server">
    <div class="container">
        <div class="main">
            <h2>
                Javascript Login Form Validation</h2>
            <form id="form_id" method="post" name="myform">
            <label>
                User Name :</label>
            <input type="text" name="username" id="username" />
            <br><br>
            <label>
                Password :</label>
            <input type="password" name="password" id="password" />
            <input type="button" value="Login" id="submit" onclick="validate();" />
            </form>
        </div>
    </div>
    </form>
</html>
</body>

Example 2: html form validation

<form action="">
    <label for="name">Username</label>
    <input id="name" type="text" required />
    <label for="Email">Email</label>
    <!-- The required attribute will prompt the user to make sure  -->
    <!-- the fields are not empty, and that the email is formatted correctly -->
    <!-- if you want to use custom validation you should use regex in JavaScript -->
    <input id="Email" type="text" required />
</form>

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