12.12 Animating SVG with CSS

Modern browsers allow you to animate both HTML and SVG elements with CSS. This is a two-stage process.
Example 1. CSS animation of CSS by using keyframes
<style>
    .starStyle{
        animation-name: starAnim;
        animation-duration: 6s;
        animation-iteration-count: 4;
        animation-direction: alternate;
        animation-timing-function: ease;
        animation-play-state: running;
    }
    @keyframes starAnim {
                0% {
                fill-opacity: 1.0;
                stroke-width: 0;
                }
                100% {
                fill-opacity: 0;
                stroke-width: 6;
                }
            }
</style>
<svg width="400" height="400" viewBox="0 0 200 200" 
xmlns="http://www.w3.org/2000/svg">
    <use href="grids.svg#grid_200x200"/>
    <!-- star Defs -->
    <defs>
        <g id="starDef">
        <path d="M 38.042 -12.361 9.405 -12.944 -0.000 -40.000
        -9.405 -12.944 -38.042 -12.361 -15.217 4.944
        -23.511 32.361 0.000 16.000 23.511 32.361 15.217 4.944 Z"/>
        </g>
    </defs>
    <use id="star"
            href="#starDef"
            class="starStyle"
            transform="translate(100,100)"
            style="fill:#2c5f2d4d; stroke:#2c5f2d;stroke-width:0.5" />
            <!-- #2c5f2d -->
</svg>