Creating transitions and animations

    └── components/
        └── transitions/
            └── CustomTransition.vue
            └── Fade.vue
    └── styles/
        └── transitions/
            └── transition-fade.scss

Preconfigured transition

This template becomes preconfigured with custom transition components that make it very easy to add transitions for conditional rendering. Each transition is first defined as a named transition under styles/, and then added as a preconfigured component. Each of the components uses the higher-level CustomTransition component, which provides sensible defaults for writing more transitions.

Custom Vue transitions

Vue guides for transitions: (includes advanced topics)

Vue has built-in <transition> components which trigger transition-oriented classes on elements that are removed or added to the DOM. This allows easily defining CSS transitions, including reusable named transitions.

Vue transition classes

The mode attribute defines the "playback" order of animations. If you're switching between two elements, usually mode="out-in" is what you want.

In short this means that Vue lets you easily define how to transition elements with conditional rendering. Note that Vue often needs you to define a key attribute for elements (it's like a unique ID). You can also declare dynamic values for keys, and any time a key changes, Vue will transition the element out with old values and in again with new, changed values.

It's preferred to write reusable named transitions. For common use cases, a named transition looks something like this:


<!-- Example: transitioning between two elements -->
<transition name="transition-fade" mode="out-in">
    <div v-if="condition" key="someKey"></div>
    <div v-else key="someOtherKey"></div>


<!-- Example: dynamic key (here the effect would be a clock fading in and out when time updates) -->
<transition name="transition-fade">
    <div :key="currentTime">
        {{ currentTime }}


.transition-fade-leave-active {
    opacity: 1;
    transition: opacity 0.25s;

.transition-fade-leave-to {
    opacity: 0;

Vue also exposes JavaScript hooks for advanced transition code.

Transitions for routes

This is similar to any other conditional rendering case. Simply use <transition> with like you would with, for example, v-if, and you're good.

<transition name="transition-fade" mode="out-in">

Keyframe animations

The preferred way is to add reusable @keyframes definitions under src/styles/keyframes/ (remember to also import new files in global.scss).

If that doesn't make sense, declare a @keyframes animation in your component code. If you do this, just prefix your animation name with view-<viewname>-.

In either case, once your keyframe animation is declared, it can be used as the animation-name in your either global styles or component styles.

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