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## CSS

1. Describe the difference between classes and ids.
2. Explain what a selector is.
3. Explain the difference between an inline style, internal style sheet and an external style sheet.
4. Explain what the "float" property does.
5. Explain the difference between "display: none" and "visibility: hidden".
6. Explain what a "pseudo class" is and provide an example.

## Javascript

1. Explain the difference between the "==" and "===" comparison operators.
2. Explain what an anonymous function is and provide an example.
3. Describe the difference between function, method and constructor declarations.
4. Explain what the following code does: