encantar-js/docs_overrides/style/extra.css

@keyframes heart {

    0%, 40%, 80%, 100% {
      transform: scale(1);
    }

    20%, 60% {
      transform: scale(1.15);
    }

}

.heart {
    animation: heart 1000ms infinite;
}

.md-button {
    border-radius: 100px !important;
}

.transparent-grid {
    display: inline-block;
    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgAQMAAABJtOi3AAAABlBMVEWZmZlmZmZYfKrVAAAAE0lEQVQI12P4/5+BgZoEA3VNBADtvT/BrQ+bEwAAAABJRU5ErkJggg==);
    background-repeat: repeat;
}

.md-typeset video {
    height: auto;
    max-width: 100%;
}