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This code is a basic HTML document that creates a simple loading animation using CSS. Here is an analysis of the code: 1. The document starts with the `<!DOCTYPE html>` declaration, which specifies the document type and version of HTML being used. 2. The HTML document contains the following structure: - `html` element with the `lang` attribute set to "en". - `head` section that includes meta tags for character set and viewport settings, as well as setting the title of the document. - `style` block within the `head` section containing CSS rules for styling the loading animation. - `body` section that contains a `div` element with a class of "loader", which will display the loading animation. 3. In the CSS section: - Body is styled to display flex, horizontally and vertically center the content, set the height to 100vh (viewport height), remove margin, and set the background color to a light gray. - The loader class styles the loading animation with a width and height of 80px, a circular shape with a border, and a border that changes color during animation. - The `@keyframes` rule defines two animations: - `spin` animates the rotation of the circular loader with a 360-degree rotation. - `colorChange` animates the change in border top color by progressing through different colors at specific intervals. 4. The `div` element with the class "loader" will display a spinning circular loading animation with changing colors. Overall, this code creates a visually appealing loading animation that rotates and changes color in a loop to give a cool visual effect of a loading process.
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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>Cool Loading Animation</title>
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<style>
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body {
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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margin: 0;
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background-color: #f0f0f0;
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}
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.loader {
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width: 80px;
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height: 80px;
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border: 8px solid #f3f3f3;
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border-top: 8px solid #3498db;
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border-radius: 50%;
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animation: spin 1.5s linear infinite, colorChange 2s ease-in-out infinite;
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}
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@keyframes spin {
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0% { transform: rotate(0deg); }
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100% { transform: rotate(360deg); }
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}
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@keyframes colorChange {
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0% { border-top-color: #3498db; }
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25% { border-top-color: #e74c3c; }
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50% { border-top-color: #f39c12; }
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75% { border-top-color: #2ecc71; }
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100% { border-top-color: #3498db; }
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}
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</style>
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</head>
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<body>
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<div class="loader"></div>
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</body>
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</html>