Created
February 18, 2021 04:47
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Client side HTML form validation without JavaScript
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<!DOCTYPE html> | |
<html lang="en" > | |
<head> | |
<meta charset="UTF-8"> | |
<title>HTML Form Validation</title> | |
<style> | |
body { | |
font-family: sans-serif; | |
} | |
legend { | |
padding: 0 10px; | |
} | |
fieldset { | |
padding: 30px; | |
} | |
label { | |
display: inline-block; | |
width: 100px; | |
} | |
form div { | |
margin-bottom: 10px; | |
} | |
input { | |
width: 200px; | |
padding: 5px; | |
border: 2px solid #eee; | |
border-radius: 4px; | |
} | |
input:valid, | |
input:in-range { | |
border-color: green; | |
} | |
input:invalid, | |
input:out-of-range { | |
border-color: red; | |
} | |
</style> | |
</head> | |
<body> | |
<form> | |
<fieldset> | |
<legend>HTML Form Validation</legend> | |
<div> | |
<label for="email">Email: <abbr title="required" aria-label="required">*</abbr></label> | |
<input id="email" type="email" name="email" required> | |
</div> | |
<div> | |
<label for="username">Username: <abbr title="required" aria-label="required">*</abbr></label> | |
<input id="username" type="text" name="username" required pattern="^[a-z0-9]{3,15}$" title="Username may only contain letters and numbers"> | |
</div> | |
<div> | |
<label for="password">Password: <abbr title="required" aria-label="required">*</abbr></label> | |
<input id="password" type="password" name="password" required pattern="^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,25}$"> | |
</div> | |
<div> | |
<label for="url">URL: <abbr title="required" aria-label="required">*</abbr></label> | |
<input id="url" type="url" name="url" required pattern="https?://.+"> | |
</div> | |
<div> | |
<label for="age">Age: <abbr title="required" aria-label="required">*</abbr></label> | |
<input id="age" type="number" name="age" required min="18" max="36"> | |
</div> | |
<div> | |
<button type="submit">Submit</button> | |
</div> | |
</fieldset> | |
</form> | |
</body> | |
</html> |
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Source => https://w3collective.com/html-form-validation/