Example :)
Source Code :)
HTML:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="style.css">
<title>Neon Light Button</title>
</head>
<body>
<button class="btn">
<span></span>
<span></span>
<span></span>
<span></span>
Hover Me
</button>
</body>
</html>
CSS:
@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');
:root {
--primary-color: #2196f3;
--secondary-color: #255784;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Poppins', sans-serif;
}
body {
background: var(--secondary-color);
width: 100vw;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
.btn {
border: none;
background: transparent;
font-size: 1rem;
color: var(--primary-color);
text-transform: uppercase;
text-decoration: none;
position: relative;
cursor: pointer;
padding: 1rem 3rem;
overflow: hidden;
transition: .2s;
}
.btn:hover {
background: var(--primary-color);
color: var(--secondary-color);
box-shadow: 0 0 10px var(--primary-color), 0 0 40px var(--primary-color), 0 0 80px var(--primary-color);
transition-delay: 1s;
}
.btn span {
position: absolute;
display: block;
}
.btn:hover span {
transition: 1s;
}
.btn span:nth-child(1) {
top: 0;
left: -100%;
width: 100%;
height: 2px;
background: linear-gradient(to right, transparent, var(--primary-color));
}
.btn:hover span:nth-child(1) {
left: 100%;
}
.btn span:nth-child(3) {
bottom: 0;
right: -100%;
width: 100%;
height: 2px;
background: linear-gradient(to left, transparent, var(--primary-color));
}
.btn:hover span:nth-child(3) {
right: 100%;
transition-delay: .5s;
}
.btn span:nth-child(2) {
top: -100%;
right: 0;
width: 2px;
height: 100%;
background: linear-gradient(to bottom, transparent, var(--primary-color));
}
.btn:hover span:nth-child(2) {
top: 100%;
transition-delay: .25s;
}
.btn span:nth-child(4) {
bottom: -100%;
left: 0;
width: 2px;
height: 100%;
background: linear-gradient(to top, transparent, var(--primary-color));
}
.btn:hover span:nth-child(4) {
bottom: 100%;
transition-delay: .75s;
}
