I am working on an iGoogle-like application. Content from other applications (on other domains) is shown using iframes.
How do I resize the iframes to fit the heigh
This answer is only applicable for websites which uses Bootstrap. The responsive embed feature of the Bootstrap does the job. It is based on the width (not height) of the content.
jsfiddle: http://jsfiddle.net/00qggsjj/2/
http://getbootstrap.com/components/#responsive-embed