Hello, World!
    
This is a simple HTML webpage.

// Simple JavaScript function to add two numbers
function addNumbers(a, b) {
    return a + b;
}

// Example usage
console.log(addNumbers(5, 3)); // Output: 8

/* Simple CSS styling for a paragraph */
p {
    color: blue;
    font-size: 18px;
    font-family: Arial, sans-serif;
}

# Simple Python function to calculate the area of a rectangle
def calculate_area(length, width):
    return length * width

# Example usage
print(calculate_area(5, 3)) # Output: 15

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