Welcome to Steemit! If you need help with editing and styling your messages, please find my messages about that. Alternatively, read my article New Steemers: Posts on How To Style Your Messages that I just created for you, which has a bunch of tips, and these links.

Adding Line Breaks and Lines on Steemit
How To Make Tables (and Proper Code Nesting) on Steemit
Using Lists on Steemit
How to "Quote" on Steemit
How to Left/Right Justify Contents into Columns
How to Center Your Text, Links and Images on Steemit
How to Change Your Font Style on Steemit
How to Use Headers on Steemit
How To Resize an Image on Steemit
Adding Emoticons & Other Icons Using UTF-8 Decimal (Base 10) HTML Codes on Steemit
How To Expose and Neutralize HTML and MDL in Your Steemit Posts
The Trouble with Spacing and Tags on Steemit

If they help you, please like and resteem! :)