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The editor looks like this (click images to for a larger view):
 
 

Here is a description of the components:

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Pages are the primary means of storing and sharing information in Confluence. 
Pages are contained within spaces. This page is in the 'Demonstration Space'. 
 

Let's play with some content. Don't worry, you won't break anything:

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Insert tables with drag and drop simplicity. 
Add, remove, cut, and paste rows and columns – this makes working with tables easy. 
 

1. Edit the page.
    
2. Click in the right-hand column to position your cursor.
    
3. Click the Table dropdown on the toolbar and drag to choose the size of your table. 
    
   
4. The table toolbar appears when there is table on your page.
   
   
5. Place your cursor in the first cell of the table and add a row below it.
   
   
   
   
6. Place your cursor in any cell of the last column of the table and delete the column.
    
   
   
   
7. Click Save.

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Learn the wonders of autoconvert (step 7 of 9)

Confluence automatically transforms linked content into rich content. Try it with Confluence pages, JIRA issues, YouTube and Vimeo videos, 
Flickr photo streams, Twitter streams, Google maps and many more.

Here's two examples of autoconvert in action.

https://youtu.be/r7WIRd_8poI

Try it yourself:

1. Edit this page.
2. Copy this link https://youtu.be/r7WIRd_8poI and paste it onto the page. 
3. Autoconvert will embed the YouTube video on the page.
4. Save the page. 

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Share your page with a team member (step 9 of 9)

Once you've created content you'll want to share it with your team members. 
Confluence can do all the work for you, just click the Share button.

1. Let's tell someone about this page. 
   Click the Share button at the top right of the page. It looks like this:
    
   
    
2. Type the name of the person or group you want to share the page with. 
   You can also enter an email address. 
   
   
3. Add a message to give the person some background about the page.
   
   
4. Click the Share button. 
   Confluence will send the person an email message about this page. Shared!

 The Share button only appears if your administrator has configured a mail server. In Confluence Cloud, this is all set up for you.