@vindex gnus-html-frame-width
The width to use when rendering HTML. The default is 70.
+@item gnus-max-image-proportion
+@vindex gnus-max-image-proportion
+How big pictures displayed are in relation to the window they're in.
+A value of 0.7 (the default) means that they are allowed to take up
+70% of the width and height of the window. If they are larger than
+this, and Emacs supports it, then the images will be rescaled down to
+fit these criteria.
+
@end table
To use this, make sure that you have @code{w3m} and @code{curl}