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winar-jinwinar-jin
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complete of challenge 27
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‎27 - Click and Drag/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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<title>Click and Drag</title>
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<link rel="stylesheet" href="style.css">
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</head>
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<body>
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<div class="items">
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<div class="item item1">01</div>
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<div class="item item2">02</div>
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<div class="item item3">03</div>
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<div class="item item4">04</div>
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<div class="item item5">05</div>
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<div class="item item6">06</div>
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<div class="item item7">07</div>
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<div class="item item8">08</div>
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<div class="item item9">09</div>
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<div class="item item10">10</div>
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<div class="item item11">11</div>
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<div class="item item12">12</div>
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<div class="item item13">13</div>
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<div class="item item14">14</div>
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<div class="item item15">15</div>
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<div class="item item16">16</div>
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<div class="item item17">17</div>
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<div class="item item18">18</div>
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<div class="item item19">19</div>
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<div class="item item20">20</div>
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<div class="item item21">21</div>
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<div class="item item22">22</div>
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<div class="item item23">23</div>
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<div class="item item24">24</div>
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<div class="item item25">25</div>
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</div>
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<script>
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const item = document.querySelector('.items');
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let isDown = false;
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let startX;
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let scrollLeft;
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item.addEventListener('mousemove', (e) => {
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if (!isDown) return;
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console.log(startX);
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e.preventDefault();
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let x = e.pageX - item.offsetLeft;
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let walkX = (x - startX) * 3;
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item.scrollLeft = scrollLeft - walkX;
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});
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item.addEventListener('mouseleave', () => {
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isDown = false;
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item.classList.remove('active');
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});
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item.addEventListener('mouseup', () => {
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isDown = false;
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item.classList.remove('active');
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});
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item.addEventListener('mousedown', e => {
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isDown = true;
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item.classList.add('active');
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startX = e.pageX - item.offsetLeft;
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scrollLeft = item.scrollLeft;
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});
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</script>
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</body>
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</html>

‎27 - Click and Drag/style.css‎

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html {
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box-sizing: border-box;
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background: url('https://source.unsplash.com/NFs6dRTBgaM/2000x2000') fixed;
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background-size: cover;
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}
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*, *:before, *:after {
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box-sizing: inherit;
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}
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body {
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min-height: 100vh;
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display: flex;
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justify-content: center;
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align-items: center;
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font-family: sans-serif;
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font-size: 20px;
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margin: 0;
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}
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.items {
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height:800px;
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padding: 100px;
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width:100%;
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border:1px solid white;
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overflow-x: scroll;
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overflow-y: hidden;
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white-space: nowrap;
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user-select: none;
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cursor: pointer;
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transition: all 0.2s;
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transform: scale(0.98);
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will-change: transform;
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position: relative;
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background: rgba(255,255,255,0.1);
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font-size: 0;
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perspective: 500px;
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}
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.items.active {
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background: rgba(255,255,255,0.3);
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cursor: grabbing;
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cursor: -webkit-grabbing;
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transform: scale(1);
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}
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.item {
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width:200px;
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height: calc(100% - 40px);
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display: inline-flex;
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align-items: center;
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justify-content: center;
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font-size: 80px;
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font-weight: 100;
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color:rgba(0,0,0,0.15);
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box-shadow: inset 0 0 0 10px rgba(0,0,0,0.15);
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}
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.item:nth-child(9n+1) { background: dodgerblue;}
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.item:nth-child(9n+2) { background: goldenrod;}
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.item:nth-child(9n+3) { background: paleturquoise;}
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.item:nth-child(9n+4) { background: gold;}
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.item:nth-child(9n+5) { background: cadetblue;}
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.item:nth-child(9n+6) { background: tomato;}
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.item:nth-child(9n+7) { background: lightcoral;}
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.item:nth-child(9n+8) { background: darkslateblue;}
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.item:nth-child(9n+9) { background: rebeccapurple;}
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.item:nth-child(even) { transform: scaleX(1.31) rotateY(40deg); }
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.item:nth-child(odd) { transform: scaleX(1.31) rotateY(-40deg); }

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