How do I view Safari in Full screen?
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Bee's suggestion gets you almost there, however, the Bookmarks and Tool Bars are still visible. Download/Install 3rd party add-on Glims. Once installed you'll find Glims preference settings as a separate panel in Safari Preferences. In the Full Screen panel, select the various options, then close preferences.
You'll find the Full Screen command in the Safari Menu. Selecting it opens Full Screen. If you want to revert to the normal screen, hover the cursor near the top of the monitor, The menus will reappear. Then select Safari Menu>Normal Screen.
As you are new to the Mac Platform, you'll find this page useful.