Header tag sizes:

h1

h2

h3

h4

h5

 
Horizontal rule:

Images:
Image example. Since this is aligned right, it does not have the automatic frame. You can add this in your photoshop doc. All images will not have a frame by default, unless you select Align left.

Aligned left will automatically add the frame. So to correct this, Choose ‘Thumbnail’ when you import it… like below. This will size it correctly to 100×100.

Example of Aligned left and chose ‘Thumbnail size 100 x 100’ which changed the size.

Here is a caption example