Type the code from the image
If you want to place the same shared content on another page, start by dropping a regular content block onto the page and placing it where you'd like the content to appear.
Edit the content block, but now click the "Select from existing shared content" button.
You can now select the name of the content block that you'd like to use.
Once you have completed this and you're back on your page, the content block will illustrate when shared content is being used. You will see the word "Shared" in the header of your content block.
The list of shared content blocks that have been created can be access from the Content menu in Sitefinity. Choose "Content Blocks".