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HTML Example:

<!DOCTYPE html>
<html>
<head>
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</head>
<body>

<h1>This is a heading</h1>
<p>This is a paragraph.</p>

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CSS

The language for styling web pages

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body {
background-color: lightblue;
}

h1 {
color: white;
text-align: center;
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p {
font-family: verdana;
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JavaScript

The language for programming web pages

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JavaScript Example:

<button onclick="myFunction()">Click Me!</button>

<script>
function myFunction() {
let x = document.getElementById("demo");
x.style.fontSize = "25px";
x.style.color = "red";
}
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Python

A popular programming language

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Python Example:

if 5 > 2:
print("Five is greater than two!")

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SQL Example:

SELECT * FROM Customers
WHERE Country='Mexico';

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