**Unit 2: Introduction to CSS**
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CSS basics: selectors, properties, values, media queries
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CSS properties: font-family, color, padding, margin
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CSS selectors: class, id, attribute selectors
**Unit 3: Introduction to JavaScript**
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JavaScript basics: variables, functions, loops, conditionals
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JavaScript syntax: function declaration, variable declaration
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JavaScript objects: document, window, document.getElementById
**Unit 4: HTML and CSS Fundamentals**
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Combining HTML and CSS:
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Layout: floats, positioning, margins, padding
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Responsive design: media queries, breakpoints
**Unit 5: Advanced HTML and CSS**
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Advanced HTML elements: