These buttons will available when you click Kitchen sink Button
Different Text Formatting option in WordPress
As you see in the above image that you have many options like Paragraph Text, Different Headings like h1, h2, h3, inline text option, Bold and Italic option, Navigate text options, bullet option and quote button. You can use all these buttons to customize your post. You can simply highlight the text with your Mouse click and just simply hit the button of your requirement.
You can use different text style and size by using Paragraph Button.
You can also use HTML tab to add html codes in your image. You can also add links and hypertext by using Insert/edit link and the shortcode for this is Alt + Shift + A.
Preview and Publish your Post after editing
You can also preview your post by clicking Preview button to check how your post look like live on web. You can also use Save Draft button to save your post. The big advanced of using WordPress is it can automatically underline mistake words and phrases so you can easily edit it and correct them.
You can also use different colors in your post by using color box. You also have a character map to use different default character list to use inside your post. You can add custom characters.