Animation Name

Can I use ?Can I use ?
animation-name:name, / @name:name,animation-name: name,


The animation-name CSS  property specifies the names of one or more @keyframes  at-rules describing the animation or animations to apply to the element.

Official keyframes

We provide a set of keyframes commonly used:


Basic usage

Add with custom keyframes

First, define @keyframes  in your css file or <style>.

@keyframes demo {
    from {
        left: 0px;
        top: 0px;
        background: rgba(83, 140, 238, .2);
        border-color: rgb(83, 140, 238);

    to {
        left: 150px;
        top: 0px;
        background: rgba(235, 95, 99, .5);
        border-color: rgb(235, 95, 99);

Now, set the animation classes for the element.

<div class="">
.\@demo\|ease-in\|1s\|infinite\|alternate {
    animation: demo ease-in 1s infinite alternate

Applying with functions

<div class="@name:$(value)">...</div>

Master supports native CSS variables and functions, just add var(--key) or use shorthand$(key) for variables.

You can also use calc(expression), env(expression) and other CSS functions if the property supports it.

To learn more, see the Functions documentation.

Conditionally apply

States and selectors

<div class="@name:fade:hover">...</div>

Master supports all native CSS selectors, just add :hover, :disabled, chaining, combinators and other CSS selectors as usual.

To learn more, see the Selectors documentation.

Responsive breakpoints

<div class="@name:fade@sm">...</div>

Responsive breakpoints can be applied to all styles. Some available breakpoints are 3xs, 2xs, xs, sm,md, lg, xl, 2xl, 3xl, 4xl. Arbitrary breakpoints can be specified through comparison operators >, >=, <, <=.

To learn more, see the Breakpoints documentation.

<div class="@name:fade@print">...</div>

Master supports media types like print, screen, speech, all, and other media queries.

To learn more, see the Media Queries documentation.

Dark mode and color schemes

<div class="@name:fade@dark">...</div>

Master uses the selector html.dark to support color schemes. Now, you can easily fine-tune your style for the color schemes.

To learn more, see the Color Schemes documentation.

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