W3.CSS Intro (Kitchen Sink)

W3.CSS Intro (Kitchen Sink)
W3.CSS Colors
The w3-color classes are inspired by modern colors used in marketing, road signs, and sticky notes:
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W3.CSS Containers
The w3-container class is the most important of the W3.CSS classes. It provides equality like:

Common margins
Common paddings
Common vertical alignments
Common horizontal alignments
Common fonts
Common colors
The w3-container class is typically used with HTML container elements, like:

<div>, <header>, <footer>, <article>, <section>, <blockquote>, <form>, and more.
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