원본 : https://codepen.io/simeydotme/pen/MWXxKrP
Aqua Button (pure css)
Using Gradients, Variables and Filters / Blending to create a really convincing Aqua button as seen on Twitter...
codepen.io
색감과 효과가 너무 이쁘다...
HTML
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Aqua Button</title>
<link rel="stylesheet" href="./style.css">
<script src="./main.js" type="module"></script>
</head>
<body>
<a href="https://codepen.io/simeydotme/pen/MWXxKrP" target="blank">
Aqua Button (pure css) by Simon Goellner
</a>
<main id="app">
<!-- 아쿠아 버튼 -->
<button class="btn-aqua">
<span class="btn-aqua-txt">Aqua Button</span>
</button>
<!-- 조절 -->
<fieldset id="custom">
<!-- 리셋/랜덤 -->
<button id="reset">reset</button>
<button id="random">random</button>
<!-- 커스텀 -->
<label>
<span>흐리게(blur)</span>
<input id="blur" data-unit="px" type="range" min=0 max=10 step=0.2 value=0>
</label>
<label>
<span>hue1</span>
<input id="hue1" data-unit="deg" type="range" min=0 max=360 value=190>
</label>
<label>
<span>hue2</span>
<input id="hue2" data-unit="deg" type="range" min=0 max=360 value=250>
</label>
<label>
<span>sat1</span>
<input id="sat1" data-unit="%" type="range" min=0 max=100 value=50>
</label>
<label>
<span>sat2</span>
<input id="sat2" data-unit="%" type="range" min=0 max=100 value=60>
</label>
<label>
<span>gradGap</span>
<input id="gradgap" data-unit="%" type="range" orient="vertical" min="10" max="40" value=30>
</label>
<label>
<span>gradOff</span>
<input id="gradoffset"data-unit="%" type="range" orient="vertical" min="20" max="120" value=45>
</label>
</fieldset>
</main>
</body>
</html>
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CSS
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@charset "utf-8";
:root{
--black:#3b3d4c;
--blur: 0px;
--hue1: 190deg;
--hue2: calc(var(--hue1) + 60deg);
--sat1: 50%;
--sat2: calc(var(--sat1) + 10%);
--gradgap: 30%;
--gradoffset: 45%;
--clr1: hsl(var(--hue1), var(--sat1), 90%);
--clr2: hsl(var(--hue2), var(--sat2), 85%);
--text: hsla(var(--hue1), 70%, 10%, .9);
--font: "Noto Sans", sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html,body{
background:var(--black);
font-family:var(--font);
color:#fff;
}
#app{
--gap:5vmin;
display:flex; flex-flow:column nowrap;
justify-content:flex-end; align-items:center;
gap:var(--gap);
position:relative; overflow:hidden;
width:90%;
margin:10vmin auto; padding-top:var(--gap);
background-color:hsl(var(--hue1), 20%, 95%);
background-image: linear-gradient(33deg, transparent 60%, var(--clr1)), linear-gradient(210deg, transparent 60%, var(--clr2));
background-size: 150%;
background-position: center;
border-radius:10px;
box-shadow: rgba(0, 0, 0, 0.15) 0px 15px 25px, rgba(0, 0, 0, 0.05) 0px 5px 10px;
}
/* 📌[아쿠아 버튼] */
.btn-aqua{
position:relative;
padding: 1.1em 1.5em;
background-color: var(--clr1);
background-image: linear-gradient(180deg, var(--clr2) var(--gradgap), transparent calc(100% - var(--gradgap)));
background-repeat: no-repeat;
background-position: center var(--gradoffset);
background-size: 100% 200%;
border: none; border-radius: 2em;
letter-spacing: -0.025em;
font-size:6vmin;font-weight: 500; color:var(--black);
box-shadow: 0 -0.5em 0.5em transparent, 0 0.5em 0.5em transparent, 0 0.25em 0.3em -0.2em hsla(var(--hue1), var(--sat1), 50%, 0.46), 0 0.25em 0.75em hsla(var(--hue1), calc(var(--sat1) - 10%), 40%, 0.3);
transition: all 0.5s ease;
cursor:pointer;
}
.btn-aqua::before,
.btn-aqua::after{
content: "";
inset: 0;
position: absolute;
border-radius: 5em;
}
.btn-aqua::before {
background-image: radial-gradient(ellipse, hsla(var(--hue1), 100%, 90%, 0.8) 20%, transparent 50%, transparent 200%), linear-gradient(90deg, #404040 -10%, transparent 30%, transparent 70%, #404040 110%);
background-repeat: no-repeat;
background-position: center 220%;
background-size: 200% 80%, cover;
box-shadow: inset 0 0.25em 0.75em rgba(0, 0, 0, 0.8), inset 0 -0.05em 0.2em rgba(255, 255, 255, 0.4), inset 0 -1px 3px hsla(var(--hue1), 80%, 50%, 0.75);
background-blend-mode: overlay;
mix-blend-mode: overlay;
filter: blur(calc(var(--blur) * 0.5));
}
.btn-aqua::after {
top: 0.075em;
left: 0.75em;
right: 0.75em;
bottom: 1.4em;
background: linear-gradient(180deg, hsla(var(--hue2), 100%, 90%, 0.9), hsla(var(--hue2), 70%, 50%, 1) 40%, transparent 80%);
filter: blur(var(--blur));
mix-blend-mode: screen;
}
/* 📌[form] */
#custom{
display:flex;flex-flow:row wrap;
justify-content:center; align-items:center;
gap:20px;
position:relative;
width:100%;
padding:4vmin 5vmin;
background:rgba(0,0,0,.3);
border:none;
}
input[type="range"]{
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
accent-color: var(--clr1);
height: calc(1em + 2px * 2);
padding: 0 5px;
background: var(--black);
border: none;
border-radius: 1em;
font-family: inherit;
color: white;
box-shadow: 0 3px 2px -3px var(--clr1);
transition: border 0.3s ease-in, outline 0.6s ease-in, box-shadow 0.6s ease-in;
}
#reset,
#random{
text-transform:uppercase;
padding:.5em 2em; font-size:20px;}
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JS
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class AquaButtonCtrl{
constructor(){
this.$aqua = document.getElementsByClassName('btn-aqua')[0];
this.$reset = document.getElementById('reset');
this.$random = document.getElementById('random');
this.$custom = document.getElementById('custom');
this.default = Object.freeze({
blur : {val:0, unit:"px"},
hue1 : {val:190, unit:"deg"},
hue2 : {val:250, unit:"deg"},
sat1 : {val:50, unit:"%"},
sat2 : {val:60, unit:"%"},
gradgap : {val:30, unit:"%"},
gradoffset : {val:45, unit:"%"}
});
this.init();
}//constructor
/** 아쿠아버튼 조절 가능 시작 */
init(){
//리셋 이벤트 추가
this.$reset.addEventListener('click', this.reset);
//랜덤 이벤트 추가
this.$random.addEventListener('click', this.random);
//인풋값 변화 이벤트 추가
this.$custom.addEventListener('change', this.change);
}//init
/** 디폴트 값 으로 리셋 */
reset = () =>{
for(const key in this.default){
const {val,unit} = this.default[key];
document.documentElement.style.setProperty(`--${key}`, `${val}${unit}`);
}
}//reset
/** 랜덤하게 바꿈 */
random = () => {
for(const key in this.default){
const $range = document.getElementById(key);
const {unit} = this.default[key];
let val;
switch(key){
case "hue1" :
case "sat1" :{
val = Math.floor(Math.random() * 360);
}break;
case "hue2" :
case "sat2" :{
val = Math.floor(Math.random() * 70) + 15;
}break;
case "gradgap" : {
val = Math.floor(Math.random() * 10) + 20;
}break;
case "gradoffset" : {
val = Math.floor(Math.random() * 20) + 40;
}break;
}
document.documentElement.style.setProperty(`--${key}`, `${val}${unit}`);
$range.value = val;
}//for
}//random
/** 컨트롤 변경시 */
change = (e) =>{
if(e.target.tagName != "INPUT") return;
const $range = e.target;
const key = $range.id;
const unit = $range.dataset.unit;
const val = $range.value;
document.documentElement.style.setProperty(`--${key}`, `${val}${unit}`);
}//change
}//class-AquaButton
/* ======================================================== */
new AquaButtonCtrl();
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