You can create, modify, and delete CSS3 transitions using the CSS Transitions panel.
To create a CSS3 transition, create a transition class by specifying values for the transition properties of the element. If you select an element before creating a transition class, the transition class is automatically applied to the selected element.
You can choose to add the generated CSS code to the current document or specify an external CSS file.
Enter a name for the selector. The selector can be any CSS selector such as a tag, a rule, an ID, or a compound selector. For example, if you want to add transition effects to all <hr> tags, enter hr
Select a state to which you want to apply the transition. For example, if you want to apply the transition when the mouse moves over the element, use the hover option.
Use the Same Transition for All Properties
Select this option if you want to specify the same Duration, Delay, and Timing Function for all CSS properties that you want to transition.
Use a Different Transition for Each Property
Select this option if you want to specify a different Duration, Delay, and Timing Function for each of CSS properties that you want to transition.
The end value for the transition effect. For example, if you want the font-size to increase to 40px at the end of the transition effect, specify 40px for the font-size property.
Choose Where To Create The Transition
To embed the style in the current document, select This Document Only.
If you want to create an external style sheet for the CSS3 code, select New Style Sheet File. When you click Create Transition, you are prompted for a location to save the new CSS file. After the style sheet is created, it is added to the Choose Where To Create Transition menu.