The only clickable items are the sender's username and any in-message website links.
Most computer displays were blinking lines of text until Apple featured clickable icons and other graphic tools in its1984 Mac. Microsoft's Windows took GUI— pronounced“ gooey”— to the masses.
This article highlights only the HTML format by allowing a clickable hyperlink within the sample page.
Specifying either width or height for the anchor will magically force IE to expand the clickable region as well.
Usability testing requires a fairly complete and coherent design artifact to test against. Whether you are testing production software, a clickable prototype, or even a paper prototype, the point of the test is to validate a product design.
This not only gives the create button more clickable area, it also helps to grab the users gaze better when they're looking for it.
Shadows and highlights show three-dimensional features, and these buttons are given inspiration, or "clickable."
If not every point within the bounding rectangle is clickable, and you perform specialized hit testing, then override and provide a clickable point.
The entire column header, text and arrow, is clickable, and you click on this header to sort the column.
The GUI gives Linux a "look and feel" with clickable icons and widgets, as well as screen borders, scroll bars, and menus that the user can manipulate and customize.
Keep this in mind when designing clickable navigation - don't put links too close together because the user will not be able to hit one link without hitting its neighbor.
