captcha generator in html css javascript

creating a simple captcha generator using html, css, and javascript is a great way to learn about form validation and user interaction. in this tutorial, i will guide you through creating a basic captcha that generates a random string of characters that the user must input correctly to proceed.

step 1: setting up the html

first, we need to create the basic structure of our html document. this will include a form with an input field for the captcha and a button to verify the input.

```html
!doctype html
html lang="en"
head
meta charset="utf-8"
meta name="viewport" content="width=device-width, initial-scale=1.0"
titlesimple captcha generator/title
/head
body
div class="captcha-container"
h1captcha verification/h1
div id="captcha" class="captcha"/div
input type="text" id="captcha-input" placeholder="enter captcha" /
button id="verify-button"verify/button
div id="message" class="message"/div
/div
/body
/html
```

step 2: adding css styles

```css
body {
font-family: arial, sans-serif;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
background-color: f4f4f4;
}

.captcha-container {
background: white;
padding: 20px;
border-radius: 5px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
text-align: center;
}

.captcha {
font-size: 24px;
font-weight: bold;
margin-bottom: 10px;
border: 1px solid ccc;
padding: 10px;
display: inline-block;
}

input[type="text"] {
padding: 10px;
width: 80%;
margin-bottom: 10px;
border: 1px solid ccc;
border-radius: 5px;
}

button {
padding: 10px 15px;
background-color: 28a745;
color: white;
border: none;
border-rad ...

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