The Biggest Header Size Possible
2nd Largest Header
3rd Largest Header
4th Largest Header
5th Largest Header
6th Largest Header
To enlarge Text to header sizing, just include a # or <h(?)> before the Text
( ? is number between 1-6)
Bold Font
To make Text Bold, you add 2 * before & after your desired text. You can make certain Word's bold.
Italic Font
Let's make Text Italic by making it more of a cursive font
To know more Please 
Just read the markdown guide linked at the submit window. Learn how to behave on steemit before shitposting.
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This is not your post shitposted. the Text style HTML code is not your copyright property !!!!
SO .........????
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Sorry for being so harsh as downvoting your post, but it is just one of many. I really don't mean no harm but to warn you.
Spamming the steem blockchain with this kind of info that is readily available in the markup guide = no value added.
Also your code is wrong, #one mark the text, and ##dont make a header without the space before the text.
There is such thing as etiquette in this community, keep breaking it and your account will soon be <0 in value, like the one who commented your latest post. Then none of your content will get any views.
I suggest you read these two articles:
Steemit blockchain is a community, it is yours, mine and every steemians property, and we want a clean community, don't you?
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Very good for the beginners who want to learn website Design.
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thanks for your comment, please upvote and resteem
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