.animated {
    background: url('data:image/svg+xml,\
    <svg xmlns="http://www.w3.org/2000/svg">\
        <style>@keyframes border-animation {to {stroke-dashoffset: -15px;}}</style>\
        <rect width="100%" height="100%" style="stroke: blue; stroke-width: 8px; fill: lemonchiffon; stroke-dasharray: 10px 5px; animation: border-animation 1s infinite linear;" />\
    </svg>');
    font-size: 3rem;
    font-family: sans-serif;
    height: 120px;
    margin: 30px auto;
    padding: 20px 0;
    text-align: center;
    width: 300px;
}