Easily create an animated glow

Question

I created this image:

Using photoshop, but I had to make around 50 layers manually, and then create a gif out of it. Is there any easier way to automatically create an animated glow similar to this?

Despiteful

Answer 1

You can use css animation. Here is an example using a vanilla div container, but you can give it a background image:

div {
  width: 200px;
  height: 200px;
  border-radius: 100px;
  background-color: #ccc;
  animation: glow 1s infinite alternate;
}

@keyframes glow {
  from {
    box-shadow: 0 0 10px -10px #aef4af;
  }
  to {
    box-shadow: 0 0 10px 10px #aef4af;
  }
}

<div></div>

Rehabilitation

Make sure you include Cross browser on animation / box-shadow, right now it will work only on Chrome. – Orlina

@Orlina Works for me without vendor prefixes on IE10+, Firefox, and Chrome. caniuse.com lists keyframes, animation, and box-shadow support for these browsers as well. – Rehabilitation

I +1 your answer btw, but you should still include them for safe practice. – Orlina