Timelines change properties over time to create an animation. To make a layer move, you change the positioning properties—left and top—over time.
To make objects appear or disappear, you change the visibility properties over time. To change the stacking order of objects, you change the z-index over time. You'll learn more about time-based animations in this hour.
You can also place images into timelines and change the image source over time. You cannot make images move around the screen unless they are contained in a layer.
The animations that Dreamweaver creates play natively in the browser. You don't need any plug-ins to ...