css transform transition
CSS Transitions
CSS transitions allows you to change property values smoothly, over a given duration.
In this chapter you will learn about the following properties:
transition
transition-delay
transition-duration
transition-property
transition-timing-function
To create a transition effect, you must specify two things:
the CSS property you want to add an effect to
the duration of the effect
Note: If the duration part is not specified, the transition will have no effect, because the default value is 0.
The following example shows a 100px * 100px red <div> element. The <div> element has also specified a transition effect for the width property, with a duration of 2 seconds:
Example
div {
width: 100px;
height: 100px;
background: red;
transition: width 2s;
}
The transition effect will start when the specified CSS property (width) changes value.
Now, let us specify a new value for the width property when a user mouses over the <div> element:
Example
div:hover {
width: 300px;
}
Notice that when the cursor mouses out of the element, it will gradually change back to its original style.
Change Several Property Values
The following example adds a transition effect for both the width and height property, with a duration of 2 seconds for the width and 4 seconds for the height:
Example
div {
transition: width 2s, height 4s;
}
