Animated Loader - CSS Typing CST Test
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Animated Loader — CSS Code
Creates a spinning loader using keyframes animation.
.loader {
width: 50px;
height: 50px;
border: 5px solid #f3f3f3;
border-top: 5px solid #007bff;
border-radius: 50%;
animation: spin 1s linear infinite;
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}CSS Language Guide
CSS (Cascading Style Sheets) is a stylesheet language used to describe the presentation of HTML documents. It controls layout, colors, fonts, spacing, and visual effects, separating content structure from design.
Primary Use Cases
- ▸Styling web pages and HTML elements
- ▸Responsive design for multiple screen sizes
- ▸Creating layouts using Flexbox and Grid
- ▸Applying animations and transitions
- ▸Theme management and branding for websites
Notable Features
- ▸Selectors and combinators to target elements
- ▸Box model controlling margins, borders, padding, and content
- ▸Media queries for responsive design
- ▸Pseudo-classes and pseudo-elements for advanced styling
- ▸Support for transitions, animations, and transformations
Origin & Creator
Developed by Håkon Wium Lie in 1994 while working with Tim Berners-Lee at CERN.
Industrial Note
CSS is specialized for visual presentation and layout rather than content creation or logic processing.