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Another popular color scheme that can be used in W3.CSS is Flat UI
Another popular color scheme that can be used in W3.CSS is Flat UI:
<div class="w3-flat-emerald">
<p>London is the most populous city in the United Kingdom,
with a metropolitan area of over 9 million inhabitants.</p>
</div>
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.