Sometimes image quality can be lost when an image has been dropped into the editor that is not the same size as the snippet.
To fix this you can either, cut the image out so that it’s the right size to the snippet. If the image is smaller this will mean adding white space to the image to make it bigger. If the image is too big this will mean resizing the image to make it smaller.
The other way is to keep the images original size but change the size of the snippet. This can be done up to 600px width. Any image larger than this will have to be resized.
You need to find out the size of the image you are working with, in this case the image above is 118px width but has been stretched to 600px. Then in the HTML Editor, locate the snippet you want to edit.
Firstly change the size of the image in <img>, change the value inside width=”” and change the width: value inside style=””. Then you need to change the value of the <table></table> which wraps the image to the same value as the image width.