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HTML Stripe Effect With Easy CSS/JS Variables
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no" /> | |
<title>Stripe Effect</title> | |
<style> | |
body { | |
padding: 25px; | |
} | |
.container { | |
width: 500px; | |
height: 500px; | |
background-color: #3891A6; | |
transform: translateZ(0); | |
border-radius: 50%; | |
border: #B20039 solid 10px; | |
} | |
</style> | |
</head> | |
<body> | |
<div id="radialStripes" class="container"></div> | |
<script> | |
var color1 = "#FF1962"; | |
var color2 = "#00FF1A"; | |
var spacing = 40; | |
var offset = 0; | |
var tempColor; | |
var container = document.querySelector(".container"); | |
var style = window.getComputedStyle(container); | |
var width = parseInt(style.getPropertyValue('width'), 10); | |
var height = parseInt(style.getPropertyValue('height'), 10); | |
var diameter = width > height ? width : height; | |
container.style.setProperty("--color1", color1); | |
container.style.setProperty("--color2", color2); | |
var styleStr = radGrad('#radialStripes', '--color1', '--color2', diameter, spacing); | |
var sheet = document.createElement('style') | |
sheet.innerHTML = styleStr; | |
document.body.appendChild(sheet); | |
function radGrad(selector, color1, color2, diameter, spacing) { | |
var style = selector | |
+ ' {background-image: radial-gradient(circle, ' | |
+ 'var(--color1) 0px, ' | |
+ 'var(--color1) calc(var(--offset) + 0px)'; | |
var toggle = false; | |
for (i = 0; i < diameter; i += spacing) { | |
ca = toggle ? color1 : color2; | |
style += ', ' + 'var(' + ca + ') ' | |
+ 'calc(var(--offset) + ' + i.toString() + 'px), ' | |
+ 'var(' + ca + ') ' | |
+ 'calc(var(--offset) + ' + (i + spacing).toString() + 'px)'; | |
toggle = !toggle; | |
} | |
style += ');}'; | |
return style; | |
} | |
function swapColors() { | |
tempColor = color2; | |
color2 = color1; | |
color1 = tempColor; | |
container.style.setProperty("--color1", color1); | |
container.style.setProperty("--color2", color2); | |
} | |
function setOffset(value) { | |
container.style.setProperty("--offset", value + "px"); | |
} | |
function animate() { | |
offset++; | |
if (offset > spacing) { | |
offset = 0; | |
swapColors(); | |
} | |
setOffset(offset); | |
requestAnimationFrame(animate); | |
} | |
animate(); | |
</script> | |
</body> | |
</html> |
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