1️⃣ HTML Tags & Attributes
Not case sensitive →
<p>=<P>=<p>Best practice: Always write in lowercase:
<p>,<div>,<a>
2️⃣ File Names
Windows:
Photo.jpg=photo.jpg✅Linux/Unix:
Photo.jpg≠photo.jpg❌Tip: Always use lowercase for files:
image.jpg,style.css
3️⃣ CSS
Properties: Not case sensitive →
color=COLORClass & ID names: Case sensitive
Example:
<!DOCTYPE html>
<html lang=”en”>
<head>
<meta charset=”UTF-8″ />
<meta name=”viewport” content=”width=device-width, initial-scale=1.0″ />
<title>Case Sensitivity</title>
</head>
<body>
<H1>HTML IS NOT Case Sensitive</H1>
<hr />
<h1>Not Case Sensitive means capital and small tags meaning is same</h1>
</body>
</html>