带滚动计数器的滑动取值块效果-html代码-BFW代码库

代码语言：html

代码描述：带滚动计数器的滑动取值块效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Hind:400,700&amp;display=swap'>
<style>
* {
	border: 0;
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
:root {
	--bg: #e3e4e8;
	--bgT: #e3e4e800;
	--fg: #17181c;
	--inputBg: #fff;
	--handleBg: #255ff4;
	--handleDownBg: #0b46da;
	--handleTrackBg: #5583f6;
	font-size: calc(16px + (32 - 16)*(100vw - 320px)/(2560 - 320));
}
body, input {
	color: var(--fg);
	font: 1em/1.5 "Hind", sans-serif;
}
body, .range, .range__counter {
	display: flex;
}
body {
	background-color: var(--bg);
	height: 100vh;
}
form, input, .range__input, .range__counter-sr {
	width: 100%;
}
form {
	margin: auto;
	padding: 0 0.75em;
	max-width: 17em;
}
label {
	font-weight: bold;
}
.range:not(:last-child) {
	margin-bottom: 1.5em;
}
.range input[type=range],
.range input[type=range]::-webkit-slider-thumb {
	-webkit-appearance: none; 
	appearance: none;
}
.range input[type=range], .range__input-fill {
	border-radius: 0.25em;
	height: 0.5em;
}
.range input[type=range] {
	background-color: var(--inputBg);
	display: block;
	margin: 0.5em 0;
	padding: 0;
}
.range input[type=range]:focus {
	outline: transparent;
}
.range input[type=range]::-webkit-slider-thumb {
	background-color: var(--handleBg);
	border: 0;
	border-radius: 50%;
	cursor: pointer;
	position: relative;
	transition: background 0.1s linear;
	width: 1.5em;
	height: 1.5em;
	z-index: 1;
}
.range input[type=range]::-moz-range-thumb {
	background-color: var(--handleBg);
	border: 0;
	border-radius: 50%;
	cursor: pointer;
	position: relative;
	transform: translateZ(1px);
	transition: background-color 0.1s linear;
	width: 1.5em;
	height: 1.5em;
	z-index: 1;
}
.range input[type=range]::-moz-focus-outer {
	border: 0;
}
.range__input, .range__input-fill, .range__counter-column, .range__counter-digit {
	display: block;
}
.range__input, .range__counter {
	position: relative;
}
.range__input {
	margin-right: 0.375em;
}
.range__input:active input[type=range]::-webkit-slider-thumb,
.range input[type=range]:focus::-webkit-slider-thumb,
.range input[type=range]::-webkit-slider-thumb:hover {
	background-color: var(--handleDownBg);
}
.range__input:active input[type=range]::-moz-range-thumb,
.range input[type=range]:focus::-moz-range-thumb,
.range input[type=range]::-moz-range-thumb:hover {
	background-color: var(--handleDownBg);
}
.range__input-fill, .range__counter-sr {
	position: absolute;
	left: 0;
}
.range__input-fill {
	background-color: var(--handleTrackBg);
	pointer-events: none;
	top: calc(50% - 0.25em);
}
.range__counter, .range__counter-digit {
	height: 1.5em;
}
.range__counter {
	margin: auto 0;
	overflow: hidden;
	text-align: center;
}
.range__counter-sr {
	background-image: linear-gradient(var(--bg),var(--bgT) 0.3em 1.2em,var(--bg));
	color: transparent;
	letter-spacing: 0.06em;
	top: 0;
	text-align: right;
	z-index: 1;
}
.range__counter-column {
	transition: transform 0.25s ease-in-out;
	width: 0.66em;
	-webkit-user-select: none;
	-moz-user-select: none;
	user-select: none;
}
.range__counter-column--pause {
	transition: none;
}
@media (prefers-color-scheme: dark) {
	:root {
		--bg: #2e3138;
		--bgT: #2e313800;
		--fg: #e3e4e8;
		--inputBg: #17181c;
	}
}
</style>

</head>
<body translate="no">
<form>
<label for="range1">One Digit</label>
<input id="range1" name="range1" type="range" min="0" max="9" value="5">
<label for="range2">More Digits</label>
<input id="range2" name="range2" type="range" min="0" max="300" value="150">
</form>

<script >
window.addEventListener("DOMContentLoaded",() => {
	let range1 = new RollCounterRange("#range1"),
		range2 = new RollCounterRange("#range2");
});

class RollCounterRange {
	constructor(id) {
		this.el = document.querySelector(id);
		this.srValue = null;
		this.fill = null;
		this.digitCols = null;
		this.lastDigits = "";
		this.rollDuration = 0; // the transition duration from CSS will override this
		this.trans09 = false;

		if (this.el) {
			this.buildSlider();
			this.el.addEventListener("input",this.changeValue.bind(this));
		}
	}
	buildSlider() {
		// create a div to contain the <input>
		let rangeWrap = document.createElement("div&q.........完整代码请登录后点击上方下载按钮下载查看