glowing text

<style>
.glow {
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
-webkit-text-stroke-width: 1px;
-webkit-text-stroke-color: #000;
font-size:2em;
-webkit-animation: glow 2.0s linear infinite;
-moz-animation: glow 2.0s linear infinite;
-ms-animation: glow 2.0s linear infinite;
-o-animation: glow 2.0s linear infinite;
animation: glow 2.0s linear infinite;
}

@keyframes glow {
0% { text-shadow: 0 0 15px pink; }
50% { text-shadow: none; }
100% { text-shadow: 0 0 15px pink; }
}
@-webkit-keyframes glow {
0% { text-shadow: 0 0 15px pink; }
50% { text-shadow: 0 0 0; }
100% { text-shadow: 0 0 15px pink; }
}
</style>

<div class="glow"><strong>glowing</strong></div>