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sample.css
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sample.css
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*, *::before, *::after {
box-sizing: border-box;
}
html {
background: radial-gradient(#222, #000);
background-attachment: fixed;
}
body {
position: absolute;
top: calc(50% - 65px);
left: calc(50% - 455px);
margin: 0 auto;
overflow: hidden;
text-align: center;
white-space: nowrap;
font-size: 0;
}
.luminaire {
position: relative;
display: inline-block;
width: 30px;
height: 30px;
margin: 50px;
border-radius: 50%;
background-color: #000;
box-shadow: 0 0 40px 20px #fff, 0 0 100px 50px #0ff;
transition: box-shadow 4s ease-out;
animation: spin 16s linear infinite;
}
@keyframes spin {
100% {
transform: rotate(360deg);
}
}
.luminaire:hover {
cursor: pointer;
}
.luminaire::before, .luminaire::after {
content: '';
display: block;
position: absolute;
top: calc(50% - 10px);
left: calc(50% - 10px);
width: 20px;
height: 20px;
border-radius: 50%;
background-color: #fff;
box-shadow: 0 0 40px 20px #fff, 0 0 100px 50px #ff0;
opacity: 0;
transition: opacity 8s, transform 8s;
}
.on {
background-color: #fff;
box-shadow: 0 0 80px 40px #fff, 0 0 200px 100px #f0f;
}
.on::before {
transform: translateX(-100px);
opacity: 1;
}
.on::after {
transform: translateX(100px);
opacity: 1;
}