A collection of thumbnails with the steemit logo on it, and still enough room to put some text on top of it.
So, all you need to do is to is click the thumbnail you like, which will bring you to the site where it's stored, so you can download the original full sized image and then you can use some photo editor, like PicMonkey to put the keywords of your post on top of it, save it to your own device and then upload it to the Steemit image upload site, so you get the url to drop in your post.
If you want to hide the thumbnail, so it only shows on the steemit tag pages, but not inside the post itself, this is how you do that;
and this are the sizes you can use to make it fit;
- 200x115
- 400x230
- 600x345
- 800x460
- 1000x575
- 1200x690
I used 600x345 px for these.
Have Fun!
And if you need some help, here some tutorial posts;
Author:
Format Your Steemit Articles And Gain Steem Power!
Author:
Adding Images To Your STEEM Posts
Author:
13 free (and Legal) ways to find high quality photos you can use on Steemit
Author:
How to place images, links and videos in STEEMit?
Author:
Detailed Guide how to add videos in Steemit!!
External sites;
Photo Editor: https://www.picmonkey.com/
To Upload Your Pictures: https://www.steemimg.com/
Create Charts: http://www.chartgo.com/
Markups (=layout): https://guides.github.com/features/mastering-markdown/
And here a whole bunch of Steem related tools: http://steemtools.com/