This article explains how to put a caption on a picture. Image captions are important because they add extra information to your visual web page elements.

In order to embed HTML, you actually need to copy the rendered HTML from either an existing web page or WYSIWYG HTML editor and then paste it into Gmail.

Select "Display as HTML" to enable HTML for the selected email. Click the InfoBar again if the message contains images that are not displaying. Click "Download Pictures" to display them.

I'm emitting a dynamically generated page in PHP that has an img tag pointing to a static image file on the server that normally doesn't change. Every so often, the PHP script modifies the image ...