Under the Basics,
: Is used for putting text in the page you are working on. You will choose which type of text you want to put and how it will appear.
: is used for putting a link address to other pages. The link is clickable.
: is used to put an image or images in the page you're working on
: is used to put a clickable image which acts as a link. you will set an address to the image and when it is clicked it directs to another page.
: Is used to create new page in your site
: Is used to put a file in your page.
: Is used to put a space between two or more contents just like when you press enter key in a keyboard.
I hope you understand?