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Neon Hover Effect

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

By @ann29-tdk

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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 Neon Hover Effect

Neon Hover Effect is an animated CSS button by @ann29-tdk. Preview the interaction, customize its HTML, styles and JavaScript, or download the files with creator credit.

Effects and categories: Hover effects
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>
<!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]>         <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]>         <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]>      <html class="no-js"> <!--<![endif]-->
<html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <title>Neon Hover Effect</title>
        <meta name="description" content="">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="stylesheet" href="style.css">
    </head>
    <body>
        <a href="#">
            <span>Click me</span>
            <div class="a"></div>
            <div class="b"></div>
        </a>
        
        <div class="shadow"></div>
        <script src="" async defer></script>
    </body>
</html>

CSS


@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200&display=swap');


*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins' , sans-serif;
}

body{
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    flex-direction: column;
    gap: 40px;
    background: #091921;
}



a{
    position: absolute;
    background: #091921;
    color: #fff;
    font-size: 2.3em;
    letter-spacing: 0.1em;
    font-weight: 400;
    padding: 30px 90px;
    transition: 0.3s;
    text-decoration: none;
    border-radius: 25px;
}


/* a:hover{
    letter-spacing: 0.25em;
    color: #f00;
    border-radius: 7.5px;
    box-shadow: 0 0 10px #f00, 0 0 20px #f00, 0 0 30px #f00;
} */


i{
    position: absolute;
}
.a::before{
    position: absolute;
    content: '';
    height: 30px;
    top: -15px;
    left: -15px;
    width: 30px;
    background: #091921;
    border: 3px solid #ff00aa;
    z-index: 4;
    transition: 0.3s;
}
.b::before{
    position: absolute;
    content: '';
    height: 30px;
    bottom: -15px;
    right: -15px;
    width: 30px;
    background: #091921;
    border: 3px solid #aa00ff;
    z-index: 4;
    transition: 0.3s cubic-bezier(0.78, 0.16, 0.18, 0.81);
}

a:hover{
    letter-spacing: 0.5em;
    border: none;
    color: #ff00aa;
    border-bottom-right-radius: 25px;
    border-top-left-radius: 25px;
    text-shadow: 0 0 10px #aa00ff,0 0 20px #aa00ff,0 0 30px #aa00ff;

}

a:hover .a::before{
    right: 50px;
    box-shadow: 0 0 10px #ff00aa, 0 0 20px #ff00aa;
    transform: rotate(45deg);
}

a:hover .b::before{
    box-shadow: 0 0 10px #aa00ff, 0 0 20px #aa00ff;
    /* right: 385px; */
    transform: rotate(45deg);
}

.shadow::before{
    content: '';
    z-index: -2;
    top: -5px;
    left: -15px;
    position: absolute;
    background: transparent;
    transition: 0.3s;
    height: 130px;
    width: 330px;
    filter: blur(15px);
    background: linear-gradient(to right, #ff00aa, #aa00ff);

}

.shadow{
    position: absolute;
    background: transparent;
    height: 120px;
    width: 300px;
    z-index: -2;
    transition: 0.3s cubic-bezier(0.78, 0.16, 0.18, 0.81);
}

.shadow::before:hover{
    width: 330px;
}