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Pure CSS Button Hover Glow Effect

HTML, CSS or Tailwind, and a little JavaScript. One button or a group of up to six.

By @Nishusk

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Buttons only: no full pages, forms, cards or navigation. Put scripts in the JavaScript tab. Tailwind uses utilities from HTML and JavaScript; use complete class names. Custom CSS supports plain CSS, without @apply, imports or plugins.

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Explore freely here. Remix to publish your version with credit to the creator.

About Pure CSS Button Hover Glow Effect

Pure CSS Button Hover Glow Effect is an animated CSS button by @Nishusk. Preview the interaction, customize its HTML, styles and JavaScript, or download the files with creator credit.

Effects and categories: Hover effects, Animated
Using this example: Copy the HTML or download index.html, style.css and app.js. Test keyboard focus, motion and contrast in your own project.

Usage, Tailwind and licensing questions

Read the source files

HTML

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>Pure CSS Button Hover Glow Effect</title>
  
    <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet"><link rel="stylesheet" href="./style.css">

</head>
<body>
<!-- partial:index.partial.html -->
<button class="glow-on-hover" type="button">HOVER ME, THEN CLICK ME!</button>
<!-- partial -->
  
</body>
</html>

CSS


html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    background: #000;
}

.glow-on-hover {
    width: 220px;
    height: 50px;
    border: none;
    outline: none;
    color: #fff;
    background: #111;
    cursor: pointer;
    position: relative;
    z-index: 0;
    border-radius: 10px;
}

.glow-on-hover:before {
    content: '';
    background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000);
    position: absolute;
    top: -2px;
    left:-2px;
    background-size: 400%;
    z-index: -1;
    filter: blur(5px);
    width: calc(100% + 4px);
    height: calc(100% + 4px);
    animation: glowing 20s linear infinite;
    opacity: 0;
    transition: opacity .3s ease-in-out;
    border-radius: 10px;
}

.glow-on-hover:active {
    color: #000
}

.glow-on-hover:active:after {
    background: transparent;
}

.glow-on-hover:hover:before {
    opacity: 1;
}

.glow-on-hover:after {
    z-index: -1;
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: #111;
    left: 0;
    top: 0;
    border-radius: 10px;
}

@keyframes glowing {
    0% { background-position: 0 0; }
    50% { background-position: 400% 0; }
    100% { background-position: 0 0; }
}

JavaScript

// Add Your button script here