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An introduction to CSS3 transitions

WYSIWYG Web Builder has built-in support for CSS3 transitions. Transitions are supported by all modern browsers. They will work in FireFox/Safari/Opera/Chrome/IE10 but not by Internet Explorer 9 or older.

A CSS3 transition is an animation that moves a property between two states. Transitions are an implicit animation, which means they are triggered by a state change like ‘hover’ or ‘focus’, unlike an animation which run continuously. Transition effects can be applied to a wide variety of CSS properties, including background-color, width, height, opacity, transforms (rotate, skew, scale, translate) and many more.

Currently transitions are supported by the following objects:
Drawing tools: Shape, Clip Art, Text Art, Curves, Polygon, Line, Banner
Form elements: Button, Combobox, Editbox, Text Area

Transitions are also available in the Style Manager. So you can dynamically assign a transition to an object (through events -> set style).
Click the Add button to add a transition to the object. Now you can set the properties of the transtion.

Specifies which state change will trigger the transition. Commonly used triggers are 'hover' and 'focus'.

Specifies the duration of the transition in milliseconds.

Specifies when the transition will start.

The timing-function specifies the speed curve of the animation. See 'animation properties' for more details.

Specifies the name of the CSS property to which the transition is applied.

Specifies the new value of the CSS property.

You can add multiple transitions to an object. This makes it possible to animate multiple properties at the same time.
In the example above we set a shape to rotate 180 degrees on hover.
Related tutorials:
An introduction to CSS3 animations
Start and stop CSS3 animations with Events
Using CSS3 transform to zoom an image
Assign a transition to an object
Objects that do support transitions have a CSS3 Animation tab in their properties.
In this example the transform of the shape is set to scale * 1.2 on hover.
In this example, the background of a standard (form) button is set on hover.
Of course, you can also change the border color, text color, shadow etc.