<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF8">
<meta name="viewport" content="width=devicewidth, initialscale=1.0">
<title>Contact Form</title>
<style>
body {
fontfamily: Arial, sansserif;
}
form {
width: 300px;
margin: 0 auto;
}
input, textarea {
width: 100%;
marginbottom: 10px;
}
button {
width: 100%;
backgroundcolor: #4CAF50;
color: white;
padding: 10px;
border: none;
cursor: pointer;
}
button:hover {
backgroundcolor: #45a049;
}
</style>
</head>
<body>
<form id="contactform">
<h2>Contact Us</h2>
<input type="text" id="name" placeholder="Name" required>
<input type="email" id="email" placeholder="Email" required>
<textarea id="message" placeholder="Message" rows="5" required></textarea>
<button type="submit">Submit</button>
</form>
<script>
document.getElementById("contactform").addEventListener("submit", function(event) {
event.preventDefault();
var name = document.getElementById("name").value;
var email = document.getElementById("email").value;
var message = document.getElementById("message").value;
if (name === "" || email === "" || message === "") {
alert("Please fill in all fields.");
} else {
alert("Thank you for contacting us! We will get back to you shortly.");
this.reset();
}
});
</script>
</body>
</html>
（图片来源网络，侵删）
