You can enter the text in the portal by using the Text/HTML module.

In order to proceed with entering the Text/HTML module, when logged in as an administrator, you have to follow this procedure:
Add New Module and select the Text/HTML module. The following dialog box will be displayed:

In order to enter the text click Edit Text. A text editor will appear which allows to enter the text directly, proceeding with formatting, and to enter the HTML code. If you wish to enter also the images, links, tables etc. use the Advanced editor.