A markup language provides a systematic approach to annotating a document to describe how the document should be presented. Markup languages use tags along with content. The tags describe how to present the document and the content is what is being presented.
HTML is the markup language used to create web pages.
<form action="login.php">
<label for="username">Username:</label>
<input type="text" id="username" name="username" placeholder="username"><br><br>
<label for="password">Password</label>
<input type="text" id="password" name="password" placeholder="password"><br><br>
<input type="submit" value="Submit">
</form>
Another popular markup language is Markdown. It is a light-weight text-based markup.
LAMP is a software stack used for web development. A web development software
stack includes everything you need to support a web application.
**LAMP includes:**
* **L**inux (Operating System)
* **A**pache (Web Server)
* **M**ySQL (Database)
* **P**HP (Programming Language)