<main id="app" class="dark">
<button class="" data-effect="flicker">
<span class="text">Hover me, and change the effect below!</span>
<span class="shimmer"></span>
</button>
<section class="selection">
<label><input type="radio" name="style" value="spin" /> spin</label>
<label><input type="radio" name="style" value="wipe" /> wipe</label>
<label><input type="radio" name="style" value="flicker" checked/> flicker</label>
<label><input type="radio" name="style" value="wave" /> wave</label>
<label><input type="radio" name="style" value="throb" /> throb</label>
<label><input type="radio" name="style" value="pulse" /> pulse</label>
</section>
<p>Based on <a href="https://codepen.io/simeydotme/pen/GRzVKqr" target="_blank">this previous Pen</a></p>
</main>
<!--
social icons
-->
<a class="social-icon codepen" href="https://codepen.io/simeydotme" title="view my codepens">
Made by Simey
</a>
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<svg viewBox="0 0 24 24">
<path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
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<path d="M9 19c-4.3 1.4 -4.3 -2.5 -6 -3m12 5v-3.5c0 -1 .1 -1.4 -.5 -2c2.8 -.3 5.5 -1.4 5.5 -6a4.6 4.6 0 0 0 -1.3 -3.2a4.2 4.2 0 0 0 -.1 -3.2s-1.1 -.3 -3.5 1.3a12.3 12.3 0 0 0 -6.2 0c-2.4 -1.6 -3.5 -1.3 -3.5 -1.3a4.2 4.2 0 0 0 -.1 3.2a4.6 4.6 0 0 0 -1.3 3.2c0 4.6 2.7 5.7 5.5 6c-.6 .6 -.6 1.2 -.5 2v3.5"></path>
</svg>
</a>
:root {
--shimmer-hue-1: 213deg;
--shimmer-sat-1: 95%;
--shimmer-lit-1: 91%;
--shimmer-hue-2: 248deg;
--shimmer-sat-2: 100%;
--shimmer-lit-2: 86%;
--shimmer-hue-3: 293deg;
--shimmer-sat-3: 78%;
--shimmer-lit-3: 89%;
--glow-hue: 222deg;
--shadow-hue: 180deg;
--spring-easing: linear(
0, 0.002, 0.01 0.9%, 0.038 1.8%, 0.156, 0.312 5.8%, 0.789 11.1%, 1.015 14.2%,
1.096, 1.157, 1.199, 1.224 20.3%, 1.231, 1.231, 1.226, 1.214 24.6%,
1.176 26.9%, 1.057 32.6%, 1.007 35.5%, 0.984, 0.968, 0.956, 0.949 42%,
0.946 44.1%, 0.95 46.5%, 0.998 57.2%, 1.007, 1.011 63.3%, 1.012 68.3%,
0.998 84%, 1
);
--spring-duration: 1.33s;
}
@property --mask {
syntax: "<angle>";
inherits: false;
initial-value: 33deg;
}
@keyframes spin {
0% {
--mask: 0deg;
}
100% {
--mask: 360deg;
}
}
@keyframes wipe {
0% {
mask-position: 200% center;
}
100% {
mask-position: 0% center;
}
}
@keyframes pulse {
0%, 90%, 100% {
opacity: 0;
}
20% {
opacity: 1;
}
}
@keyframes pulse2 {
0% {
opacity: 0;
}
8% {
opacity: 1;
}
14% {
opacity: 0;
}
20% {
opacity: 1;
}
100% {
opacity: 0;
}
}
@keyframes flicker {
0% { opacity:0.1; mask-image:none;}
1% { opacity:1; }
2% { opacity:0.5; }
3% { opacity:0.1; }
4% { opacity:0.7; }
5% { opacity:1; }
7% { opacity:0.7;
mask-image: linear-gradient(
90deg, transparent 15%, black 45%, black 55%, transparent 85%
); }
8% { opacity:0.1; }
10% { opacity:0.4; }
13% { opacity:1; }
15% { opacity:0.1;
mask-image: linear-gradient(
45deg, rgba(0,0,0,0.4) 25%, transparent 45%, black 65%, black 90%, transparent 100%
);}
17% { opacity:0.8;}
19% { opacity:0.3; }
21.5% { opacity:0; }
23% { opacity:1; }
39% { opacity:0.7; }
45% { opacity:0.2; }
49% { opacity:0.9; }
52% { opacity:0.7;}
53.5% { opacity:0.2;
mask-image: linear-gradient(
90deg, black 15%, black 45%, rgba(0,0,0,0.4) 75%, transparent 85%
);}
57% { opacity:0.8; }
63% { opacity:1; }
75% { opacity:.85; }
77% { opacity:1; }
80% { opacity:.9; }
82% { opacity:.95; }
83% { opacity:.85; }
86% { opacity:1; }
89% { opacity:.85; }
91% { opacity:1; }
92% { opacity:.9; }
100% { opacity:1; }
}
@keyframes shine {
0% {
opacity: 0;
}
15% {
opacity: 1;
}
55% {
opacity: 1;
}
100% {
opacity: 0;
}
}
@keyframes text {
0% {
background-position: 100% center;
}
100% {
background-position: -100% center;
}
}
.dark button {
color: var(--bg);
font-weight: 600;
font-size: 1.2em;
background-image: linear-gradient(
315deg,
hsl(var(--shimmer-hue-1),var(--shimmer-sat-1),var(--shimmer-lit-1)) 0.00%,
hsl(var(--shimmer-hue-2),var(--shimmer-sat-2),var(--shimmer-lit-2)) 47%,
hsl(var(--shimmer-hue-3),var(--shimmer-sat-3),var(--shimmer-lit-3)) 100.00%
);
padding: .8em 1.4em;
position: relative;
isolation: isolate;
box-shadow: 0 2px 3px 1px hsl(var(--glow-hue) 50% 20% / 50%);
border: none;
outline: none;
border-radius: 0.66em;
scale: 1;
transition: all var(--spring-duration) var(--spring-easing);
text-transform: unset;
}
.shimmer {
position: absolute;
inset: -40px;
border-radius: inherit;
mix-blend-mode: color-dodge;
mix-blend-mode: plus-lighter;
pointer-events: none;
}
.shimmer::before,
.shimmer::after {
transition: all 0.5s ease;
opacity: 0;
content: "";
border-radius: inherit;
position: absolute;
inset: 40px;
}
.shimmer::before {
box-shadow: 0 0 3px 2px hsl(var(--shimmer-hue-1) 20% 95%),
0 0 7px 4px hsl(var(--shimmer-hue-1) 20% 80%),
0 0 13px 8px hsl(var(--shimmer-hue-2) 40% 60%),
0 0 22px 6px hsl(var(--shimmer-hue-2) 20% 40%);
z-index: -1;
}
.shimmer::after {
box-shadow: inset 0 0 0 1px hsl(var(--shimmer-hue-2) 70% 95%),
inset 0 0 3px 1px hsl(var(--shimmer-hue-2) 100% 80%),
inset 0 0 9px 1px hsl(var(--shimmer-hue-2) 100% 70%);
z-index: 2;
}
button[disabled] {
background: rgb(76 76 92);
background-image: none;
}
button:hover:not(:active):not([disabled]) {
scale: 1.1;
transition-duration: calc(var(--spring-duration)*0.5);
}
button:active:not([disabled]) {
scale: 1.05;
transition-duration: calc(var(--spring-duration)*0.5);
}
button:focus .shimmer,
button:active .shimmer {
animation-play-state: paused!important;
mask-image: none!important;
}
button:hover:not([disabled]),
button:hover:not([disabled]) .shimmer::before,
button:hover:not([disabled]) .shimmer::after {
opacity: 1;
}
button .text {
color: transparent;
background-clip: text;
background-color: var(--bg);
background-image: linear-gradient(120deg, transparent, hsla(var(--shimmer-hue-1),100%,80%,0.66) 40%, hsla(var(--shimmer-hue-2),100%,90%,.9) 50%, transparent 52%);
background-repeat: no-repeat;
background-size: 300% 300%;
background-position: center 200%;
}
button:not([disabled]):hover .text {
animation: text .66s ease-in-out 1;
}
button:not([disabled]) .shimmer::before,
button:not([disabled]) .shimmer::after {
opacity: 1;
}
button:not([disabled]) .shimmer {
mask-image: conic-gradient(
from var(--mask, 0deg),
transparent 0%,
transparent 10%,
black 36%,
black 45%,
transparent 50%,
transparent 60%,
black 85%,
black 95%,
transparent 100%
);
mask-size: cover;
animation: spin 3s linear infinite both -0.5s;
}
button:not([disabled])[data-effect=wipe] .shimmer {
mask-image: linear-gradient(
90deg, transparent 20%, black 88%, transparent 90%
);
mask-size: 200% 200%;
mask-position: center;
animation: wipe 1.5s linear infinite both -0.5s;
}
button:not([disabled])[data-effect=wave] .shimmer {
mask-image: linear-gradient(
90deg, transparent 15%, black 45%, black 55%, transparent 85%
);
mask-size: 200% 200%;
mask-position: center;
animation: wipe 3s linear infinite both -0.5s;
}
button:not([disabled])[data-effect=throb] .shimmer {
mask-image: none;
animation: pulse 3s ease infinite both -0.5s;
}
button:not([disabled])[data-effect=pulse] .shimmer {
mask-image: none;
animation: pulse2 3s ease infinite both -0.5s;
}
button:not([disabled])[data-effect=flicker] .shimmer {
mask-image: none;
animation: flicker 3.33s ease infinite both -0.5s;
}
body,
html {
display: block;
height: 100dvh;
padding: 20px;
margin: 0;
background-image: radial-gradient(
circle at 50% 0%,
rgb(67, 54, 74) 16.4%,
rgb(47, 48, 67) 68.2%,
rgb(27, 23, 36) 99.1%
);
}
main#app {
color: var(--fg);
display: flex;
flex-direction: column;
margin: auto;
padding: 16px;
align-items: center;
justify-content: center;
border-radius: 16px;
box-sizing: border-box;
}
.input {
min-height: 100px;
width: 100%;
position: relative;
}
.count {
position: absolute;
right: 5px;
bottom: 5px;
}
textarea {
min-height: 100px;
width: 100%;
background: hsla(0deg,10%,10%,0.5);
border: 1px solid hsla(0deg,10%,50%,0.5);
border-radius: 8px;
color: white;
padding: 8px;
box-sizing: border-box;
font: inherit;
resize: vertical;
}
.selection {
margin: 20px auto;
display: flex;
justify-content: center;
align-items: center;
gap: 16px;
}
.selection label {
display: inline-flex;
align-items: center;
gap: 4px;
}
p {
font-size: 1.2rem;
margin-top: 4em;
opacity: 0.5;
&:hover {
opacity: 1;
}
}
let btn = document.querySelector("button");
let radios = document.querySelectorAll("[type=radio]");
radios[Math.floor(Math.random() * radios.length)].checked = true;
radios.forEach((r) => {
r.onchange = (e) => {
btn.dataset.effect = e.currentTarget.value;
btn.classList.remove('textShine');
window.requestAnimationFrame(() => {
btn.classList.add('textShine');
});
};
if( r.checked ) {
btn.dataset.effect = r.value;
}
});
This Pen doesn't use any external JavaScript resources.