# Welcome to the Playground!
I see that it's your first time here. Please consider doing a few lessons first if you are not familiar with Codemoji and in no time you'll be able to come back and master the playground!
This area is called the playground. You can use it to play around with the different tags, building whatever webpage you would like. There are no rules! Simply drag the emojis from the Emoji Box into the text editor on the left and then add text to see what you can create.
As always, press the blue "Run Code" button in the bottom left corner of the screen to run your code, then press the purple "View Code" button that appears to see what you've created!
If you forget your task (to play!) or would like a refresher as to how the playground works, simply click the white triangle in the bottom left corner of the screen and this tip will reappear.
## Example Code
### HTML Document Structure
```html
Your Title Here
Welcome to Codemoji!
This is a paragraph.
Some content in a div.
This text is strong.
This text is italic.
```
### CSS Example
```css
.color-1 { color: red; }
.size-1 { font-size: 12px; }
```
## Summary of HTML Tags
- ``: This is the HTML tag, it wraps the entire document.
- ``: Contains meta-information about the HTML document.
- ``: Sets the title of the document.
- `<body>`: Contains the content of the document.
- `<h1>`: Represents the main heading.
- `<p>`: Defines a paragraph.
- `<div>`: A section in the document.
- `<strong>`: Indicates strong importance.
- `<i>`: Designates text as italics.
- `<br>`: Inserts a line break.
- `<ul>` and `<li>`: Defines an unordered list.
- `<blockquote>`: Denotes a section that is quoted from another source.
- `<table>`, `<tr>`, `<td>`: Used for creating a table.
- `<audio>`: Embeds sound content.
- `<video>`: Embeds video content.