Click the "HTML" button at the top of the editing box, and an HTML editor displays the post's HTML code. ... and update the height and width in the HTML editor.

In this table-themed HTML tutorial, I’ll explain how to make a basic table, add and remove borders, create layouts, make cells the shape and size you want, place cell contents, and add color.

Fill in either the width or the height for your re-sized images; the other will change automatically, to maintain the aspect ratio. Click "OK." Advertisement. Article continues below this ad.

What you're looking for is probably to set width to 100%, then set max-height and max-width to the actual size of your image if you want it to never scale above that size: Code: ...