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Added Day 81
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public/81/index.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Day 81/100</title>
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</head>
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<body>
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<main>
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<div class="slider" id="slider">
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<div class="slider-handle" id="slider-handle"></div>
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<div class="slider-track" id="slider-track"></div>
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</div>
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</main>
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<style>
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:root {
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--slider-value: 0;
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}
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body {
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margin: 0;
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overflow: hidden;
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display: flex;
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justify-content: center;
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align-items: center;
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width: 100vw;
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height: 100vh;
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background-color: rgb(
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calc(var(--slider-value) * 255),
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calc(var(--slider-value) * 255),
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calc(var(--slider-value) * 255)
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);
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}
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.slider {
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position: relative;
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width: 200px;
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height: 50px;
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background-color: #fff;
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outline: 5px solid #000;
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}
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.slider-handle {
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position: absolute;
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top: 0;
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left: 0;
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width: 5px;
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height: calc(100% - 5px);
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margin: 2.5px;
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background-color: #000;
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}
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.slider-track {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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}
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</style>
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<script>
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const slider = document.getElementById("slider");
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const sliderHandle = document.getElementById("slider-handle");
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const sliderTrack = document.getElementById("slider-track");
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let isDragging = false;
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slider.addEventListener("click", (e) => {
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const x = e.clientX - slider.offsetLeft;
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sliderHandle.style.left = `${x}px`;
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});
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slider.addEventListener("mousedown", (e) => {
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e.preventDefault();
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const x = e.clientX - slider.offsetLeft;
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isDragging = true;
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let left = Math.max(
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0,
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Math.min(x, slider.offsetWidth - sliderHandle.offsetWidth - 5)
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);
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sliderHandle.style.left = `${left}px`;
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document.documentElement.style.setProperty(
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"--slider-value",
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`${left / (slider.offsetWidth - sliderHandle.offsetWidth - 5)}`
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);
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});
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document.addEventListener("mouseup", (e) => {
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e.preventDefault();
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isDragging = false;
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});
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document.addEventListener("mousemove", (e) => {
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e.preventDefault();
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if (isDragging) {
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const x = e.clientX - slider.offsetLeft;
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let left = Math.max(
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0,
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Math.min(x, slider.offsetWidth - sliderHandle.offsetWidth - 5)
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);
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sliderHandle.style.left = `${left}px`;
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document.documentElement.style.setProperty(
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"--slider-value",
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`${left / (slider.offsetWidth - sliderHandle.offsetWidth - 5)}`
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);
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}
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});
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</script>
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</body>
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</html>

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