MD

Markdown

HTML Example:

# Heading level 1

## Heading level 2

This is paragraph.

This is **bold text**.

> This is blockquotes.

1. Milk
2. Orange
3. Tomato

HTML

HyperText Markup Language

Learn HTML

HTML Elements

HTML Attributes Reference

Reference Deprecated Tags

HTML Global Attributes

HTML Event Attributes

HTML Example:

<!DOCTYPE html>
<html>
  <title>This is title of the page.</title>
<body>

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

</body>
</html>

CSS

Cascading Style Sheets

Learn

CSS Reference

CSS Selectors

CSS Functions Reference

CSS Default Values

Learn CSS Grid

HTML Example:

body {
  background-color: green;
}

h1 {
  background: red;
  text-align: center;
}

p {
  color: yellow;
}

JS

JavaScript

Learn JavaScript

Example

<!DOCTYPE html>
<html>
<body>

<p id="demo">Hello World!</p>

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

<script>
function myFunction() {
  document.getElementById("demo").innerHTML = "Hello JavaScript!";
}
</script>
</body>
</html>